* Enable async/await APIs for iOS 13, etc.
This bumps the required compiler version to 5.5.2 which was included in
Xcode 13.2, where backporting was first introduced.
This breaks less developers and enables developers who aren't using
these APIs to still compile using Xcode 13.0 and 13.1.
As far as I can tell, the only breakage this includes now is developers
who are using Xcode 13.0 or 13.1, targeting iOS 15 and using one of
these 7 APIs. It will result in a compiler error and they'll have to
either use the completion handler version or upgrade to Xcode 13.2+ to
fix the compilation error.
* Missed checks, CHANGELOG
* Fixed avialability, added watchOS for RTDB
* Moved to watchOS 7 for all async/await APIs to match platform support
* Move firebase user agent logic to a separate class.
* FIRAppTest: prefix some tests with the tested method names
* FIRAppTest: user agent new fields tests
* New user agent field added.
* Headers
* API docs
* ./scripts/style.sh
* nullability fix
* Move environment info methods to GoogleUtilities
* GULAppEnvironmentUtilTest
* GULAppEnvironmentUtil swift tests
* FirebaseApp user agent swift flag test
* ./scripts/style.sh
* Cleanup CoreDiagnostics
* Nullable device model
* FIRCoreDiagnosticsTest fix
* Merge fixes
* Fix import
* rename
* Cleanup GUL imports (since all headers are public now)
* Remove the `FirebaseOptions()` bare initializer.
This was unintentionally surfaced from the ObjC header and should be
removed.
Note: although the existing initializer doesn't work, this is still a
breaking change.
* Style
* Changelog update.
Seyed Mojtaba Hosseini Zeidabadi