Copper ROS2 payloads

Those are the payloads for Copper (see crate cu29).

Types that are supported are:

• std_msgs/Int8
• sensor_msgs/PointCloud2

Adding new payloads (feel free to contribute!)

To add a new payload, we pregenerated all the RIHS01 in the RIHS payloads file from Jazzy.

Added the script extract_rihs01.sh to extract the RIHS01 from Jazzy. As an alternation you can do:

ros2 run rmw_zenoh_cpp rmw_zenohd
ros2 topic echo /FOO std_msgs/String
ros2 topic info /FOO -v