Release as Debian Package

[DLu]

@DLu Any plan for a python3-ros-command package in Debian? :-) Maybe you can get @jspricke to support it?

I'm pretty sure @rhaschke would also be ok with including it in the techfak ROS-O repository
to make it available for ROS-O and ROS2 in parallel. :)

Originally posted by @v4hn in #45

I am all in favor of making this available as a Debian package, but I never went through the steps of figuring out how to do that (other than rosdistro).

If anyone wants to assist in that effort, I'm all ears.