[DNM][DNM][WIP] Projectile backend code port and update

Ports#54924,  #65061, #59804 from /tg.
adds auxiliary code from /tg to make code work.

code/game/objects/structures/crates_lockers/closets.dm

@@ -110,10 +110,10 @@
 	if(HAS_TRAIT(user, TRAIT_SKITTISH))
 		. += "<span class='notice'>If you bump into [p_them()] while running, you will jump inside.</span>"
 
-/obj/structure/closet/CanPass(atom/movable/mover, turf/target)
+/obj/structure/closet/CanAllowThrough(atom/movable/mover, turf/target)
+	. = ..()
 	if(wall_mounted)
 		return TRUE
-	return !density
 
 /obj/structure/closet/proc/can_open(mob/living/user, force = FALSE)
 	if(force)