Added support for CTCP commands to the IRC bridge
Added support for CTCP commands to the IRC bridge

- Implements relevant parts from the CTCP specification at
  http://www.irchelp.org/irchelp/rfc/ctcpspec.html
- Fixed parsing of CTCP VERSION requests (follow-up to 19b8cbb)
- Added support for new CTCP commands:
  - ACTION (also known as /me command): will be shown to players in the
    #irc channel as "[ #irc ] * IRC.<nick> <action message> *"
  - ERRMSG, FINGER: are silently ignored (irrelevant or deprecated)
  - PING is replied to with the correct pong reply
  - TIME is replied to with the current server time

Signed-off-by: Haru <f7976dc425bcce048120127956a7ec59259f4452@dotalux.com>

Nipol/Siesta,Nipol/Siesta,Nipol/Siesta