SSAO object excludes

Moves several things onto a new plane/layer to keep them from getting the SSAO shadows so it looks nicer.

code/modules/power/apc.dm

@@ -64,6 +64,8 @@
 	desc = "A control terminal for the area electrical systems."
 
 	icon_state = "apc0"
+	plane = TURF_PLANE
+	layer = ABOVE_TURF_LAYER
 	anchored = 1
 	use_power = 0
 	req_access = list(access_engine_equip)

code/modules/reagents/reagent_dispenser.dm

@@ -5,6 +5,8 @@
 	desc = "..."
 	icon = 'icons/obj/objects.dmi'
 	icon_state = "watertank"
+	plane = TURF_PLANE
+	layer = ABOVE_TURF_LAYER
 	density = 1
 	anchored = 0
 	pressure_resistance = 2*ONE_ATMOSPHERE