Added wrench_act to slot machines, so that they can be moved by the crew

Added the section of code that is used on pretty much every wrenchable machinery to the slot machines, so that they can now be moved and wrenched down again. Wrench time set to 120 to make it take a tad longer than most things to unwrench/wrench.

code/game/machinery/slotmachine.dm

@@ -20,6 +20,12 @@
 			account = null
 	ui_interact(user)
 
+/obj/machinery/slot_machine/wrench_act(mob/user, obj/item/I)
+	. = TRUE
+	if(!I.tool_use_check(user, 0))
+		return
+	default_unfasten_wrench(user, I, 120)
+
 /obj/machinery/slot_machine/ui_interact(mob/user, ui_key = "main", var/datum/nanoui/ui = null, var/force_open = 1)
 	ui = SSnanoui.try_update_ui(user, src, ui_key, ui, force_open)
 	if(!ui)