Add compression quality param for iOS & Android

[retyui]

Summary

File size increase after cropping on iOS

Test Plan

What's required for testing (prerequisites)?

What are the steps to reproduce (after prerequisites)?

Compatibility

OS	Implemented
iOS	✅
Android	✅

Checklist

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

[EvanBacon]

@retyui This is not my repo, please stop mentioning me.