[WIP] Patch provider's tests

- [ ] BingMaps (need api key)
- [x] GeoIP2Test
- [x] GeoIPsTest
- [ ] GeoipTest (need the php geoip extension)
- [ ] GeoName (issue when bounds data is null)
- [x] GeoPlugin
- [ ] GoogleMaps (need api key)
- [ ] GoogleMapsBusiness (need api key)
- [x] HostIp
- [X] IpInfoDb
- [X] MapQuest
- [x] MaxMind
- [ ] MaxMindBinary (issue with utf-8 encoding of the locality)
- [x] OpenCage
- [ ] TomTom (need to check the api)

I like this API :)