Update every initialize() proc to return an initialize hint.

* Yes, all of them.
* Also did a few corrections to redundant New() and broken Destroy() along the way
* Renamed the turf_initializer.initialize() proc to InitializeTurf to avoid confusion.
* Subsumed /area/proc/initialize into /atom/proc/initialize() - Made /area's LateInitialize to get same behavior as before.

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

@@ -24,7 +24,7 @@
 	var/list/will_contain
 
 /obj/structure/closet/initialize()
-	..()
+	. = ..()
 	if(will_contain)
 		create_objects_in_loc(src, will_contain)
 

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

@@ -6,7 +6,7 @@
 	density = 1
 
 /obj/structure/largecrate/initialize()
-	..()
+	. = ..()
 	for(var/obj/I in src.loc)
 		if(I.density || I.anchored || I == src || !I.simulated)
 			continue