This PR fixes the autolink script including:
* Specifying the minSdkVersion for Android. Closes #5983.
* Removing the RNN Pod added by the react-native link script.

Merge v5 into master

Highlights of this release
* Easier installation
* autolink and reac-native link support
* Shared Element Transition - reimplemented from scratch and new API
* [iOS] showModal animation api parity
* [Android] Animation values are now declared in dp
* [iOS] deprecate topBar.drawBehind
* [Android] RNN is migrating to Kotlin

closes #5904