[Story] rtbox list

[akdev1l]

Problem

We need to be able to list out toolbx containers.

Solution

We will make a call to podman ps and parse out the output.
We will filter out by label to identify the containers that are marked with the toolbx label and only display those.
If the all flag is passed we will show even containers that are not running.

Acceptance Criteria

1. rtbox list shows a list of running toolbx containers
2. rtbox list --all shows a list of toolbx containers including not running ones
3. We don't care too much about output format at this point, default json formatter is fine for now

[akdev1l]

This kinda works now, it looks like the other toolbx runtimes also list toolbox images so will add that too.