* Update dependencies to match zcashd v5.5.0
* Update dependencies to match Zebra main branch
* Update release instructions
* Add module docs for the build script to avoid warnings
* Update bridge file list to match the latest zcashd
* Ignore some emacs temporary files
* Standardise directory include paths in Cargo.toml
* Add extra info to cxx_gen errors
* Add additional Rust dependencies needed to compile
* Ignore some expected clippy lints
* Silence a C compiler macro redefinition warning
* Standardise directory paths in build.rs
* fix cxxbridge code generation
* Update Cargo.lock
* Use include!() for bridge.rs
* Add a changelog entry for the next release
* Fix a warning by adding docs for the crate
* Remove previous depend/zcash
* Squashed 'depend/zcash/' content from commit eb80047476
git-subtree-dir: depend/zcash
git-subtree-split: eb80047476e9c0db3524f647d412faf8d4a584ee
* Update depend/zcash to v5.5.0
```sh
git subtree add -P depend/zcash https://github.com/zcash/zcash.git v5.5.0 --squash
git rm depend/zcash/Cargo.toml
```
---------
Co-authored-by: Conrado Gouvea <conradoplg@gmail.com>