[new] net/catgirl - TLS only ncurses IRC client

catgirl is an IRC client which is an in-between minimalism and usual
weechat/irssi clients which have too many features.

While the man page is complete, if you want to make a quick test,
you need to create a configuration file in ~/.config/catgirl/mynetwork
with the content

host = server.fqdn
join = #test_channel

and then run catgirl mynetwork

DESCR:
catgirl proposes features such as:
- Tab complete, Split scroll, URL detection, Nick coloring,
Topic diffing, Ignore

But won't implement so called "non-features" as:
- Dynamic configuration, Multi-network, Reconnection, CTCP,
Cleartext IRC