Add ControlInfo class and change the controls related methods to resemble the C++ API (e.g. no more string based control methods). We don't implement ControlList or ControlInfoMap but just expose the same data via standard Python dict. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>