Add in a traitor item for Security

I don't even know if Security can be Traitors anymore, but if they can,
this'll help

- Traitor Security Officers, Wardens and Head of Security can now buy a
special supercharged flash for 4 telecrystals
- On use, it will cause massive amounts of eye damage, cause some
regular burn damage to the head and paralyze the affected mob for a long
while
- The mob will let out a telltale scream as a drawback. It also doesn't
prevent them from screaming their lungs out into their earpiece,
although they will stutter for good measure
- The flash has a 30 % chance of simply exploding in the user's hand on
use, downing them for 5 seconds and making a bang sound
- Superflash also stuns borgs for much longer, more precisely 15-30 sec

Code was tested and works as intended, now it's all a matter of balance