Implement Nominatim as an alternative to Android Geocoder and Google Places

[ferranpons]

Is your feature request related to a problem? Please describe.
Since you need to Pay for Places SDK features it would be helpful to have an alternative to it.

Describe the solution you'd like
Implement the OpenStreetMap's Nominatim API would be a good alternative.

Describe alternatives you've considered
We can consider looking for more APIs to implement to make the users implement what it fits better to their needs.

Additional context

[Jaimies]

Did you have any progress with this? I am somewhat interested in implementing such an option.