get_transform() method

Every actor in Carla has a get_transform() method that returns the location and the rotation of the object in the world coordinates. While this is straight forward for vehicles or other actors that we spawn in the world coordinate system; for sensors it might get a bit confusing. It is because while spawning the sensors attached to a vehicle, we specify their location and rotation with respect to the vehicle coordinate system. Thus lidar.get_transform() or camera.get_transform() will return their carla.Transform object with respect to the world coordinates.