Introduce Fantom.unstable_advanceAnimationsByTime (#51752)

Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/51752

changelog: [internal]

Introduce a way to test animations: `unstable_advanceAnimationsByTime`. An API that fakes passage of time and triggers UI ticks to simulate how animations are run on iOS and Android.

The API is marked as unstable because it might evolve as we write more tests for C++ Animated.

Reviewed By: mdvacca

Differential Revision: D75787082

fbshipit-source-id: 24e29732bbbf581871e7868289257ab60d891ddf