catgirl: Implement Wallops (patch)

Hi all,

The following patchset implements IRC Wallops in catgirl. Similarly to
other clients e.g. Halloy, received Wallops are displayed in the server
buffer.

A Wallops can be sent via the /wallops command.

Thanks to RektIRC for help with testing this on a real IRC server.

Cheers,
-Alcor.

• 0003-Display-WALLOPS-messages.patch
• 0004-add-wallops-command.patch

> The following patchset implements IRC Wallops in catgirl. Similarly to
> other clients e.g. Halloy, received Wallops are displayed in the server
> buffer.

Included is a tiny revision to the /wallops patch to ensure the sent
message is not echoed (most ircds will echo it anyway).

Cheers,

• 0004-add-wallops-command-v2.patch