Potential New Categories for migrating ros-users and ros-release

[tfoote]

@jackie

As a part of the Slack experiment I made a plethora of channels with very broad robotics-related, e.g. “perception”, “planning”, “drones”, as well as tools-related channels, e.g. there was a whole channel dedicated to Rviz for some reason. These were very popular, although you could argue that broad robotics-related categories aren’t very relevant to ROS Discourse.

Indeed, though many of these are already SIGs so I think as they migrate in the topics will get filled in.

We can also turn on tags in discourse too, but I’m not sure how to best suggest using them.