[react devtools] Device storage support

[rbalicki2]

Summary

• This PR adds support for persisting certain settings to device storage, allowing e.g. RN apps to properly patch the console when restarted.
• Pass device storage getters/setters from RN to DevTools' connectToDevtools. The setters are then used to populate values on window. Later, the console is patched using these values.
• If we receive a notification from DevTools that the console patching fields have been updated, we write values back to local storage.
• See this (outdated) react-native PR.

How did you test this change?

• Manual testing, yarn run test-build-devtools, yarn run prettier, yarn run flow dom