setFeatureState implemented but trouble with scripts

[davor-bauk-sh]

I have a fork of @rnmapbox/maps with a working implementation of setFeatureState(), getFeatureState(), and removeFeatureState().

However, I'm unable to get the example projects up and running as all the setup scripts mentioned in CONTRIBUTING.md are failing with errors (yarn generate, pod install, etc).

I would love to contribute this code, but I would need some help with the above.