Adds various detective tweaks.

![](http://puu.sh/9Hopg/ecae845500.png)
Adds a new grey detective uniform. Sprites by myself.
Adds a detective's flask, and a standard flask for mapmakers. Sprites from Bay.
Removes the tie from the brown detective trenchcoat, and adds it to the hard-worn suit.
Makes the leather satchel the default detective satchel, and makes lace-up shoes the default detective footwear.
Makes the detective spawn with sunglasses.
Makes the Forensic Scanner weight class 2 (instead of weight class 3), allowing it to fit into a pocket.
Removes the the virtually unused evidence bags from the detective's spawning gear (a box of them are still in his office, however).