Stop/Remove all running containers before removing images

[a13xp0p0v]

Thanks to @joseigor for the PoC: #11

[a13xp0p0v]

Looked at the design.

Decided to create a python script manage_containers.py, that will substitute build_containers.sh and rm_containers.sh.

It will support choosing specific containers for removing.

[a13xp0p0v]

Implemented in #27.

Quoting README:

Remove all created images:

$ python3 manage_images.py -r

Expected output, if some containers are running:

Remove the container image providing Clang 17 and GCC 14
Error response from daemon: conflict: unable to delete 18f5a5c70571 (cannot be forced) - image is being used by running container e322f234ee1b
[!] WARNING: Image removal failed, see the error message above

[!] WARNING: failed to remove 1 container image(s), see the log above

Current status:
-----------------------------------------
 Ubuntu | Clang  | GCC    | Image ID
-----------------------------------------
 16.04  | 5      | 4.9    | -
 16.04  | 6      | 5      | -
 18.04  | 7      | 6      | -
 18.04  | 8      | 7      | -
 20.04  | 9      | 8      | -
 20.04  | 10     | 9      | -
 20.04  | 11     | 10     | -
 22.04  | 12     | 11     | -
 22.04  | 13     | 12     | -
 22.04  | 14     | 12     | -
 24.04  | 15     | 13     | -
 24.04  | 16     | 14     | -
 24.04  | 17     | 14     | 18f5a5c70571
-----------------------------------------

In that case simply stop this container and run manage_images.py -r again.