Heather/who command

[heatherbshapiro]

Implemented who command. Updated the repository functions to getAllowed users by name.

To test:

• In a room, you can type /who and it will give you a list of users who have been in the room
• If you go to a different user and create a new room. They will now be the owner of that room (we changed the repository so owned rooms will be implemented for users from here on out)
• go back to the original user, join a room, and type /who and you will get a list of the owned rooms they have, and whether or not they are online.

[ashanhol]

This works- one note though, if you type /who "user" and they have a /note set, it'll display the note as well. We should check to see if that works for if you have an /afk message set too once we get that working. Also: it marks correctly the active/inactive status and last seen!?!? This was an issue for #292 so we should see if that persists or what that command does differently. :shipit: