Summary:
Changelog: [Internal]
Implements a shim for the NativePerformance TurboModule, which can be used as a mock to unit test the JS side of WebPerformance functionality (in particular, the higher level API logic of `Performance` and `PerformanceObserver` implementations in JS) without need to have the native NativePerformance implementation available (which would otherwise require running some heavy weight e2e tests).
Reviewed By: rubennorte
Differential Revision: D43985454
fbshipit-source-id: da10387c1d70cb0300c077972d3925bc2fad4f5e
Ruslan Shestopalyuk