IRC Bots for various services

This commit adds several IRC bots that I've used in the past
* nagios
* rt (ticketing system, RequestTracker)
* yp (ldap lookup bot)
* copy of BasicBot.pm for compatibility

These are super old, and the main reason I'm putting them here
is to refer to user interface and functionality for future
admin interaction systems. Every shop should have a chat channel
where admins can both interact, and perhaps a second one where
they can see critical alerts in real time, squelch stuff, and
possibly interact with tickets.