Adds a magical locker staff.
It goes through people, capturing anyone being hit by it and putting them in a welded locker
The locker decays in about 5 minutes, to prevent the hallways flooding too much.
Escape time is only a minute.
Explosions are less effective on people inside
Why: It's a bulky wand, and great if you want people to just fuck off. You can either leave them or do something horrible to them.
The sprites are codersprites, except for the locker, please forgive me
fix: makes dragnet non harmful
tweak: pacifists can now use any disabler or stun setting on any energy gun
code: removed all of the pacifism check code from code/modules/mob/living/living.dm
code: gun objects no longer have a harmful variable, instead, ammo_casing objects now have a harmful variable, which is by default set to TRUE
code: if a pacifist fires a gun, it checks whether or not the round chambered is lethal, instead of whether or not the gun itself is lethal.
