Adds tacticool helmet lights, adds siren helmet as premium item

Created by: 9600bauds

You may now attach flashlights to security helmets, the HoS' helmet, the Warden's helmet, and SWAT helmets. To unattach the flashlight, use a screwdriver. New flashlight attachment sprites courtesy of Blithering (see #9279 (closed)) (closes #9279 (closed)) (closes #9462 (closed)). Added siren helmets as a premium item from Sec vending machines. When used, they WOOP WOOP due to lack of better sound: 0:00 in https://www.youtube.com/watch?v=_BxBs4f4RIU

I had to make Sec helmets into a subtype, did so in such a way that other helmets could easily get new attachments if sprites are provided in the future. Modifies the maps to accomplish this

92% tested

Pictures: