Go Library to access [Google Maps](https://developers.google.com/maps/documentation/geocoding/intro), [MapQuest](https://developer.mapquest.com/documentation/api/geocoding/), [Nominatim](https://nominatim.org/release-docs/latest/api/Overview/), [OpenCage](https://opencagedata.com/api), [Bing](https://msdn.microsoft.com/en-us/library/ff701715.aspx), [Mapbox](https://www.mapbox.com/developers/api/geocoding/), and [OpenStreetMap](https://wiki.openstreetmap.org/wiki/Nominatim) geocoding / reverse geocoding APIs.