Makes wall-mounted machines layer above windows (#7708)

Makes wall-mounted machines layer above windows so that they are clickable if placed on windows

code/modules/mining/machine_processing.dm

@@ -8,6 +8,7 @@
 	name = "production machine console"
 	icon = 'icons/obj/machines/mining_machines.dmi'
 	icon_state = "console"
+	layer = ABOVE_WINDOW_LAYER
 	density = TRUE
 	anchored = TRUE
 

code/modules/mining/machine_stacking.dm

@@ -4,6 +4,7 @@
 	name = "stacking machine console"
 	icon = 'icons/obj/machines/mining_machines.dmi'
 	icon_state = "console"
+	layer = ABOVE_WINDOW_LAYER
 	density = 1
 	anchored = 1
 	var/obj/machinery/mineral/stacking_machine/machine = null