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/items/devices/tvcamera.dm

@@ -27,7 +27,7 @@
 	to_chat(usr, "Audio feed is [radio.broadcasting ? "on" : "off"]")
 
 /obj/item/device/tvcamera/initialize()
-	..()
+	. = ..()
 	camera = new(src)
 	camera.c_tag = channel
 	camera.status = FALSE