Add python bindings for quering vendor information from a ControlId. While at it, update __repr__ so that it also prints the vendor. Example usage: >>> cid libcamera.ControlId(20, libcamera.Saturation, ControlType.Float) >>> cid.vendor 'libcamera' Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>