Lawgiver reinstated

Adds back in Lawgiver, the lawgiver lockbox and the ability to create
them in research.

code/modules/projectiles/projectile/special.dm

@@ -24,6 +24,19 @@
 		explosion(target, -1, 0, 2)
 		return 1
 
+/obj/item/projectile/bullet/gyro/law
+	name ="high-ex round"
+	icon_state= "bolter"
+	damage = 15
+	
+	on_hit(var/atom/target, var/blocked = 0)
+		explosion(target, -1, 0, 2)
+		sleep(0)
+		var/obj/T = target
+		var/throwdir = get_dir(firer,target)
+		T.throw_at(get_edge_target_turf(target, throwdir),3,3)
+		return 1
+
 /obj/item/projectile/temp
 	name = "freeze beam"
 	icon_state = "ice_2"