fix: Xcode 12 compatibility

[Fetten]

Summary

The latest Xcode 12 fails to build when a module does not depend on React-Core directly. This change is necessary for all native modules on iOS. For details please see: facebook/react-native#29633 (comment)

Test Plan

1. Build an App with Xcode 11.x. Result: The app builds.
2. Build an App with Xcode 12. Result: The app will not build when depending on React.
3. Build an App with Xcode 12 with the PR changes applied. Result: The app builds.

What's required for testing (prerequisites)?

Mac OS with Xcode 12

What are the steps to reproduce (after prerequisites)?

see Test Plan

Compatibility

OS	Implemented
iOS	✅
Android	❌

Checklist

• I have tested this on a device and a simulator
• I added the documentation in README.md
• I mentioned this change in CHANGELOG.md
• I updated the typed files (TS and Flow)
• I added a sample use of the API in the example project (example/App.js)

[radko93]

There are multiple podspecs in this repo so I'm not sure this is enough.

[Fetten]

There are multiple podspecs in this repo so I'm not sure this is enough.

@radko93 Yes, there are, but none depends on React. Instead they use the main RNPermissions.podspec as dependency. My tests with Xcode 12 also went all fine.

[zoontek]

Thanks! I will release a new version.

[geraintwhite]

Note that this change makes the minimum react-native version 0.60.2 th3rdwave/react-native-safe-area-context#147

[mikehardy]

I honestly have no idea how anyone can use RN60 productively any more. Doesn't this library already not support RN59?

[zoontek]

@mikehardy You can use with manual link of the core + CocoaPods for the handlers + jetifier -r on Android.
I will update the README to drop the support of RN 0.60.