## Description Expose rosbag2_transport::Recorder `record, stop, start_discovery and stop_discovery` APIs as a services ## Related Issues - Relates https://github.com/ros2/rosbag2/issues/926 ## Completion Criteria Services for the rosbag2_transport::Recorder `record, stop, start_discovery and stop_discovery` exists ## Implementation Notes / Suggestions It is pretty trivial to add the same way as other services in the `rosbag2_transport::Recorder`. ## Testing Notes / Suggestions - Will need to add more unit tests for the newly added services to the existent https://github.com/ros2/rosbag2/blob/rolling/rosbag2_transport/test/rosbag2_transport/test_record_services.cpp