Removes a great amount of machinery copypasta with circuitboards.

Also changes New -> Initialize in most of them.
renamed: `code/game/machinery/computer/computer.dm` -> `code/game/machinery/computer/_computer.dm`
renamed: `code/game/machinery/machinery.dm` -> `code/game/machinery/_machinery.dm`
Moved all circuitboards to a new folder at `code/game/objects/items/weapons/circuitboards`

code/modules/cargo/console.dm

@@ -18,8 +18,8 @@
 	circuit = /obj/item/weapon/circuitboard/computer/cargo/request
 	requestonly = TRUE
 
-/obj/machinery/computer/cargo/New()
-	..()
+/obj/machinery/computer/cargo/Initialize()
+	. = ..()
 	var/obj/item/weapon/circuitboard/computer/cargo/board = circuit
 	contraband = board.contraband
 	emagged = board.emagged

code/modules/cargo/packs.dm

@@ -1778,9 +1778,7 @@
 	name = "Shield System Control Board"
 	cost = 5000
 	special = TRUE
-	contains = list(
-					/obj/item/weapon/circuitboard/machine/computer/sat_control
-					)
+	contains = list(/obj/item/weapon/circuitboard/computer/sat_control)
 	crate_name= "shield control board crate"
 
 /datum/supply_pack/misc/bicycle