GoogleMaps plugin for QtLocation module

Build instructions:

1. </your/Qt/folder/bin/>qmake -r
2. make
3. make install

Running: Plugin parameter mustbe provided in order to make plugin works

PluginParameter { name: "googlemaps.useragent" value: "mygreatapp" }

PluginParameter { name: "googlemaps.cachefolder" value: "/gmaps_cache" }

PluginParameter { name: "googlemaps.route.apikey" value: "bla-bla" }

PluginParameter { name: "googlemaps.maps.apikey" value: "bla-bla1" }

PluginParameter { name: "googlemaps.geocode.apikey" value: "bla-bla2" }

PluginParameter { name: "googlemaps.maps.tilesize" value: "256" }

Debugging: to check what plugins are loaded, set QT_DEBUG_PLUGINS=1 environment variable