unban comamnd with reason in DB

[phil-flip]

add pardon reason to to banned entry when displayed

[totallytavi]

Implementing a way to do this on my fork. Will make a PR if I get anything that works

[phil-flip]

If possible this should be implemented in the current codebase. Not the rewrite.

[totallytavi]

This removes the ban entirely, force delete from database?

[phil-flip]

/unban should just unban the user on that server. The DB entry and update is already handled by the unban-event.