Mobster items + shirt

Adds a tommygun with a 50-round drum of .45 bullets, a fedora with robust tipping action, and a gamer shirt for the unfashionable. Also an entry in the select equipment admin power for event fun.

A tip of the fedora to WJohnston for great clothing sprites, and to @Razharas for troubleshooting.

http://imgur.com/a/zUSqh