Multiple servers

[KDercksen]

This is related to #4, I'd also like to be able to handle multiple servers. Separate sockets will be needed for each server, so this is a little bit harder than just supporting multiple channels on one server.

[KDercksen]

The config file might take the following form:

[general]
servers = freenode,quakenet

[freenode]
host = irc.freenode.net
...

[quakenet]
host = irc.quakenet.org
...

The irc function can then be called for each of the specified servers, each one running in a separate thread (https://docs.python.org/3.6/library/multiprocessing.html might be interesting for this?).

[KDercksen]

In doubt about this one lol. I'll leave it open, but no guarantees that I'm gonna implement this. Who knows, maybe when I have some free time and some weird sudden need to dive deeper into multiprocessing 😄