Support import mcap from ROS2 Livox 360 lidar

[Sau72]

My friend using recorder for data from Livox 360, which consist from ROS2 Jazzy, Livox-SDK2, livoxdriver2 and writer to mcap. I had changed sources for processing CustomMsg for /livox/lidar topic. Sources in attachments.
McapLivox.zip

[michalpelka]

Great addition!
Please open PR - I will be happy to review

[Sau72]

How create new branch or PR? I don`t have permissions. I am need create my fork?

[michalpelka]

Yes, create own fork and you can create submit a PR.