built-in tor and i2p support

built-in tor and i2p support

From: Soni L.
with catgirl's (unintentional) focus on privacy (like not supporting CTCP
etc), it would be the perfect client for darknet.

if it supported it.

since supporting local proxies is out of the question why not support tor
and i2p explicitly?

(while at it, ssh support would be nice too. lots of ppl use IRC clients
and bouncers over ssh, but once again catgirl doesn't support this use-case
for no good reason.)