ansible collection for the client side of things

[bendem]

What is the idea ?

Following the spirit of #71, it would be nice to install the callback and ansible modules using collections rather than through pip.

Currently, I have this is my ansible config to make the callback plugin useable, would love to clean it up:

[defaults]
; non portable, only works when launched from our bundled container
callback_plugins = /venv/lib/python3.8/site-packages/ara/plugins/callback

I'm currently using 1.5.8.