Prevents Hacking for Contraband, Enables Contraband by Emag

Implements logic to dictate unique behaviours of hacking & emagging such that...

1. You can't hack wires to enable contraband-- though you can disable it!
2. The only way to get contraband from the nifsoft shop is by emagging, which is now possible.

code/modules/nifsoft/nif_softshop.dm

@@ -19,6 +19,10 @@
 
 /obj/machinery/vending/nifsoft_shop/Initialize()
 	. = ..()
+
+	if(wires)
+		qdel(wires)
+	wires = new /datum/wires/vending/no_contraband(src) //These wires can't be hacked for contraband.
 	entopic = new(aholder = src, aicon = icon, aicon_state = "beacon")
 
 /obj/machinery/vending/nifsoft_shop/Destroy()
@@ -70,9 +74,9 @@
 		list(premium, CAT_COIN))
 
 	for(var/current_list in all_products)
-		var/category = current_list[2]
+		var/category = current_list[CAT_HIDDEN]
 
-		for(var/entry in current_list[1])
+		for(var/entry in current_list[CAT_NORMAL])
 			var/datum/nifsoft/NS = entry
 			var/applies_to = initial(NS.applies_to)
 			var/context = ""
@@ -220,3 +224,18 @@
 /obj/machinery/vending/nifsoft_shop/throw_item()
 	//TODO: Make it throw disks at people with random software? That might be fun. EVEN THE ILLEGAL ONES? ;o
 	return 0
+
+/datum/wires/vending/no_contraband
+
+/datum/wires/vending/no_contraband/UpdatePulsed(index) //Can't hack for contraband, need emag.
+	if(index != VENDING_WIRE_CONTRABAND)
+		..(index)
+	else
+		return
+
+/obj/machinery/vending/nifsoft_shop/emag_act(remaining_charges, mob/user) //Yeees, YEEES! Give me that black market tech.
+	if(!emagged)
+		emagged = 1
+		categories |= CAT_HIDDEN
+		to_chat(user, "You short out [src]'s access lock & stock restrictions.")
+		return 1