Chat application forum.

- Do this in Elixir VM.
    - channel, queue, subscribe, subscription, publish
- Create a group for messaging.
- Join chat group.
- Ask for group and chat id from rails, based on this elixir will open up a connection-chat portal. 
    - store if group is still active/inactive, closed and the amount of time the data will be held on db.
    - TBD if data will be persisted ever. 