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/modules/integrated_electronics/core/printer.dm

@@ -20,7 +20,7 @@
 	can_clone = TRUE
 
 /obj/item/device/integrated_circuit_printer/initialize()
-	..()
+	. = ..()
 	if(!recipe_list.len)
 		// Unfortunately this needed a lot of loops, but it should only be run once at init.
 

code/modules/integrated_electronics/subtypes/input.dm

@@ -335,7 +335,7 @@
 	var/datum/radio_frequency/radio_connection
 
 /obj/item/integrated_circuit/input/signaler/initialize()
-	..()
+	. = ..()
 	set_frequency(frequency)
 	// Set the pins so when someone sees them, they won't show as null
 	set_pin_data(IC_INPUT, 1, frequency)