Split out a few things to remove all react-native Animated uses (Bundle size)

[natew]

This is a PR I'd be happy to contribute, so just would want the go ahead it would be accepted!

The Animated package in react-native-web is quite large, and projects that use reanimated can easily get rid of it. I have a little webpack config that does this using webpack.NormalModuleReplacementPlugin to alias it to a shim, but this is hacky, and I had issues getting it to work with this library forcing me to actually stub out a few more things to not cause breakage.

We should get this library in better shape for the web by:

1. Lets convert it into a monorepo so we can,
2. Split out DrawerLayout and Swipeable into their own packages
3. Clean up small remaining references