Speed radio numpad hot keys

[mintyphresh]

I seriously don't think calling out antag activity on the radio needs any kind of speed up.

This already exists in the game. Pressing the semicolon key will instantly open general frequency. What this does is make it so that common frequencies, like Medical or Engineering, have their own semicolon button. How does that make antag callouts better...? Ah, I guess if Security has it's own hotkey, that could cause problems. But they do already have the emergency alert PDA module that replaces their flashlight. Not sure it'd be problematic, and I'd love to see quality of life features like this