fix: deprecate geoips provider (#972)

* fix: deprecate geoips provider

- adds `@deprecated` annotations to the class & constructor (which will warn people using IDEs)
- Updates the readme and changelog to communicate the deprecation
- Removes it from the main readme.

* feat: add deprecation docs

* fix: add back authors

Update requirements to support Country not being null

Removed feature interfaces (#720)

* Removed feature interfaces

* Applied changes from StyleCI