Summary:
- Related: #23313
- ImageStore is **iOS only**. AFAIK there is no reason this functionality isn't available on Android.
- base64 is very inefficient with the React Native bridge
- Ideally the `FileSystem` solutions will integrate Turbo Modules to circumvent bridge issues by passing direct references to files.
* [General][added] - A deprecation notice with info about third-party solutions for getting a base64-encoded string.
* [General][fixed] - Missing warnings for unimplemented platform methods.
Pull Request resolved: https://github.com/facebook/react-native/pull/23330
Differential Revision: D14022159
Pulled By: cpojer
fbshipit-source-id: 2a026ebf47cb315e9a0cfe6e3697a1799c5cbe2c
62599fa8ff