Add extra information to Who admin readout

Created by: dylanstrategie

The "shortened" readout (aka how many players are alive, dead, etc) has been expanded to allow an admin to get the round's current status at a glance, with the following changes :

• All categories are now stylized. Living is blue, dead is black, observers are gray, lobby players are gray italic, living antags are red, dead antags are green
• Split Dead/Observer into Dead and Observer, to allow an admin to quickly check if there's just a lot of observers or if a ton of people died, also useful to see if there's enough observers around for an ERT or gimmick
• Added Dead Antag category, so admins can check at a glance how many antags bit the dust
• Some extra formatting, mostly removing spaces before parenthesis and getting rid of C++ case

Tested, looks good