Add the Pipeline handler name to the Camera Properties when a camera is constructed. This helps support and identify how the camera is being managed internally and what configuration has taken effect, especially as the pipeline handler chosen can be impacted by both environment variables and configuration files. Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>