WGS-84世界标准坐标、GCJ-02**国测局(火星坐标)、BD-09百度坐标系转换 目前有: ##WGS-84 -> GCJ-02
+ (CLLocationCoordinate2D)wgs84ToGcj02:(CLLocationCoordinate2D)location;
##GCJ-02 -> WGS-84
+ (CLLocationCoordinate2D)gcj02ToWgs84:(CLLocationCoordinate2D)location;
##WGS-84 -> BD-09 + (CLLocationCoordinate2D)wgs84ToBd09:(CLLocationCoordinate2D)location; ##BD-09 -> WGS-84 + (CLLocationCoordinate2D)bd09ToWgs84:(CLLocationCoordinate2D)location; ##GCJ-02 -> BD-09 + (CLLocationCoordinate2D)gcj02ToBd09:(CLLocationCoordinate2D)location; ##BD-09 -> GCJ-02
+ (CLLocationCoordinate2D)bd09ToGcj02:(CLLocationCoordinate2D)location;