Support Freenode IRC

Previously my ERC setup just supported Google's internal IRC. Now I have
Freenode for things like #nixos, #emacs.

This complicated my KBDs for cycling through IRC channels since certain channels
only exist on certain servers. To remedy this, I introduced a temporary solution
that looks up the server given a particular channel. This isn't ideal, but it
works for now.

configs/shared/.emacs.d/init.el

@@ -23,6 +23,7 @@
 (require 'dotfiles)
 (require 'bookmark)
 (require 'keyboard)
+(require 'irc)
 (require 'email)
 
 (require 'wpc-keybindings)