1. duplicates secant-testnet target and call it secant mainnet https://github.com/zcash/secant-ios-wallet/issues/273
2. renames Info copy plist file and Display name
3. Fixes TCA code bootstrapping so it has the mainnet environment
Fixed Info-Plist
4. (off code repo) create the mainnet app on the app store
4. create the mainnet app on the app store
5. create the mainnet variant on Crashlytics
6. create a GoogleServices-Plist file
7. change tag triggers to mainnet and testnet can be built independently from each other
8. add Icons for testnet
Creates TargetConstants enum for network target
Closes [#568] Change display name to sECCant
make Derivation tool be static by SECANT_{NETWORK} target
Closes [#570] Change AppIcon to ECC icon
Closes#207
Lukas Korba
Francisco Gindre