Planes Framework (#4545)

* Polaris initial plane upstream merge

* POLARIS: Fix RIG visors with new plane system, and material scanner VIS_FULLBRIGHT

* POLARIS: Fix GetFlatIcon so that cameras and id pictures don't show the HUD overlays.

* POLARIS: Adds a 'alter values' proc for plane master ease of tweaking

Setting stuff like colorblindness variety and things.

* Remove NIF reference, fix lighting layer define

* Handle effects above lighting plane

* Moved all layer defines to planes+layers.dm
* Fixed overlays that are supposed to be above lighting to use the PLANE_LIGHTING_ABOVE

* Merge: 3000% human/update_icons() speed improvement

* Merge: Avoid ghosts pointing at things

code/modules/admin/topic.dm

@@ -1001,7 +1001,11 @@
 		//strip their stuff and stick it in the crate
 		for(var/obj/item/I in M)
 			M.drop_from_inventory(I, locker)
-		M.update_icons()
+		if(ishuman(M))
+			var/mob/living/carbon/human/H = M
+			H.update_icons_layers() //Cheaper
+		else
+			M.update_icons()
 
 		//so they black out before warping
 		M.Paralyse(5)