initial commit: gitignore, conduct, contributing, license and swift format

.gitignore

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+# Generated header file
+zcashlc.h
+
+# Rust
+
+## Generated by Cargo
+## will have compiled files and executables
+/target/
+
+## These are backup files generated by rustfmt
+**/*.rs.bk
+
+# params files
+*.params
+# Xcode
+
+## Build generated
+build/
+DerivedData/
+
+## Various settings
+*.pbxuser
+!default.pbxuser
+*.mode1v3
+!default.mode1v3
+*.mode2v3
+!default.mode2v3
+*.perspectivev3
+!default.perspectivev3
+xcuserdata/
+
+## Other
+*.moved-aside
+*.xccheckout
+*.xcscmblueprint
+
+## Obj-C/Swift specific
+*.hmap
+*.ipa
+*.dSYM.zip
+*.dSYM
+
+## Playgrounds
+timeline.xctimeline
+playground.xcworkspace
+
+# Swift Package Manager
+.build/
+
+# Carthage
+Carthage/Checkouts
+Carthage/Build
+Example/**/Carthage
+# Accio dependency management
+Dependencies/
+.accio/
+
+# fastlane
+fastlane/report.xml
+fastlane/Preview.html
+fastlane/screenshots/**/*.png
+fastlane/test_output
+
+# Code Injection
+iOSInjectionProject/
+
+# macOS
+
+## General
+.DS_Store
+.AppleDouble
+.LSOverride
+
+#ignore Pods directory for example project 
+Pods
+
+# do not commit generated libraries to this repo
+lib
+*.a
+*.generated.swift
+env-vars.sh
+wallet/wallet/Generated/Constants.generated.swift

CONDUCT.md

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+# Contributor Code of Conduct
+
+As contributors and maintainers of this project, and in the interest of
+fostering an open and welcoming community, we pledge to respect all people who
+contribute through reporting issues, posting feature requests, updating
+documentation, submitting pull requests or patches, and other activities.
+
+We are committed to making participation in this project a harassment-free
+experience for everyone, regardless of level of experience, gender, gender
+identity and expression, sexual orientation, disability, personal appearance,
+body size, race, ethnicity, age, religion, or nationality.
+
+Examples of unacceptable behavior by participants include:
+
+* The use of sexualized language or imagery
+* Personal attacks
+* Trolling or insulting/derogatory comments
+* Public or private harassment
+* Publishing other's private information, such as physical or electronic
+  addresses, without explicit permission
+* Other unethical or unprofessional conduct
+
+Project maintainers have the right and responsibility to remove, edit, or
+reject comments, commits, code, wiki edits, issues, and other contributions
+that are not aligned to this Code of Conduct, or to ban temporarily or
+permanently any contributor for other behaviors that they deem inappropriate,
+threatening, offensive, or harmful. Note that contributors may be volunteers
+who do not represent Electric Coin Company. They are free to express their own
+opinions so long as they adhere to these guidelines.
+
+By adopting this Code of Conduct, project maintainers commit themselves to
+fairly and consistently applying these principles to every aspect of managing
+this project. Project maintainers who do not follow or enforce the Code of
+Conduct may be permanently removed from the project team.
+
+This Code of Conduct applies both within project spaces and in public spaces
+when an individual is representing the project or its community.
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be
+reported by contacting a project maintainer (see below). All
+complaints will be reviewed and investigated and will result in a response that
+is deemed necessary and appropriate to the circumstances. Maintainers are
+obligated to maintain confidentiality with regard to the reporter of an
+incident.
+
+You may send reports to [our Conduct email](mailto:conduct@z.cash).
+
+If you wish to contact specific maintainers directly, the following have made
+themselves available for conduct issues:
+
+- Daira Hopwood (daira at z.cash)
+- Sean Bowe (sean at z.cash)
+
+
+This Code of Conduct is adapted from the [Contributor Covenant][homepage],
+version 1.3.0, available at
+[https://www.contributor-covenant.org/version/1/3/0/][version]
+
+[homepage]: https://www.contributor-covenant.org
+[version]: https://www.contributor-covenant.org/version/1/3/0/
+

CONTRIBUTING.md

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+# Contributing Guidelines
+
+This document contains information and guidelines about contributing to this project.
+Please read it before you start participating.
+
+**Topics**
+
+* [Asking Questions](#asking-questions)
+* [Reporting Security Issues](#reporting-security-issues)
+* [Reporting Non Security Issues](#reporting-other-issues)
+* [Developers Certificate of Origin](#developers-certificate-of-origin)
+
+## Asking Questions
+
+Questions are welcome! We encourage you to ask questions through GitHub issues.
+Before doing so, please check that the project issues database doesn't already
+include an answer to your question. Then open a new Issue and use the "Question"
+label.
+
+## Reporting Security Issues
+
+If you have discovered an issue with this code that could present a security hazard or wish to discuss a sensitive issue with our security team, please contact security@z.cash [security.asc](https://z.cash/gpg-pubkeys/security.asc). Key fingerprint = AF85 0445 546C 18B7 86F9 2C62 88FB 8B86 D8B5 A68C
+
+## Reporting Non Security Issues
+
+A great way to contribute to the project
+is to send a detailed issue when you encounter a problem.
+We always appreciate a well-written, thorough bug report.
+
+Check that the project issues database
+doesn't already include that problem or suggestion before submitting an issue.
+If you find a match, add a quick "+1" or "I have this problem too."
+Doing this helps prioritize the most common problems and requests.
+
+When reporting issues, please include the following:
+
+* The version of Xcode you're using
+* The version of iOS or macOS you're targeting
+* The full output of any stack trace or compiler error
+* A code snippet that reproduces the described behavior, if applicable
+* Any other details that would be useful in understanding the problem
+
+This information will help us review and fix your issue faster.
+
+## Pull Requests
+
+We **love** pull requests! 
+
+All contributions _will_ be licensed under the MIT license.
+
+Code/comments should adhere to the following rules:
+
+* Every Pull request must have an Issue associated to it. PRs with not 
+associated with an Issue will be closed
+* Code build and Code Lint must pass.
+* Names should be descriptive and concise.
+* Although they are not mandatory, PRs that include significant testing will be
+prioritized.
+* All enhancements and bug fixes need to be documented in the CHANGELOG.
+* When writing comments, use properly constructed sentences, including
+  punctuation.
+* When documenting APIs and/or source code, don't make assumptions or make
+  implications about race, gender, religion, political orientation or anything
+  else that isn't relevant to the project.
+* Remember that source code usually gets written once and read often: ensure
+  the reader doesn't have to make guesses. Make sure that the purpose and inner
+  logic are either obvious to a reasonably skilled professional, or add a
+  comment that explains it.
+
+## Developer's Certificate of Origin 1.1
+
+By making a contribution to this project, I certify that:
+
+- (a) The contribution was created in whole or in part by me and I
+      have the right to submit it under the open source license
+      indicated in the file; or
+
+- (b) The contribution is based upon previous work that, to the best
+      of my knowledge, is covered under an appropriate open source
+      license and I have the right under that license to submit that
+      work with modifications, whether created in whole or in part
+      by me, under the same open source license (unless I am
+      permitted to submit under a different license), as indicated
+      in the file; or
+
+- (c) The contribution was provided directly to me by some other
+      person who certified (a), (b) or (c) and I have not modified
+      it.
+
+- (d) I understand and agree that this project and the contribution
+      are public and that a record of the contribution (including all
+      personal information I submit with it, including my sign-off) is
+      maintained indefinitely and may be redistributed consistent with
+      this project or the open source license(s) involved.
+
+
+
+This contribution guide is inspired on great projects like [AlamoFire](https://github.com/Alamofire/Foundation/blob/master/CONTRIBUTING.md) and [CocoaPods](https://github.com/CocoaPods/CocoaPods/blob/master/CONTRIBUTING.md)

LICENSE

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+Copyright 2021 Electric Coin Company
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the "Software"), 
+to deal in the Software without restriction, including without limitation the 
+rights to use, copy, modify, merge, publish, distribute, sublicense, and/or 
+sell copies of the Software, and to permit persons to whom the Software is 
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in 
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 
+THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 
+DEALINGS IN THE SOFTWARE.

zcash.swiftformat

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+# options
+--self remove # redundantSelf
+--importgrouping testable-bottom # sortedImports
+--commas always # trailingCommas
+--trimwhitespace always # trailingSpace
+
+# rules
+--rules redundantParens,redundantSelf,sortedImports,trailingCommas,trailingSpace