Enabling GPS location for WinRT

Use WinRT's geoposition ability to enable GPS location.

Use the public static void SetLocation(Geoposition location) function to detail location.

Geolocator geoLocator = new Geolocator();
            geoLocator.DesiredAccuracyInMeters = 100;
            geoLocator.ReportInterval = 0;
            Geoposition location = geoLocator.GetGeopositionAsync().AsTask().Result;
            Localytics.SetLocation(location);