Ports /tg/ and CM planemasters to replace our renderers. (#21458)

Part one of our nefarious plans to destroy lag forever, and also
accomplish some cool shit.

This replaces our renderer system with plane masters, this will also be
used to turn skyboxes into backdrops and thus totally remove skybox
updating lag. Additionally, this will let us manipulate entire planes
very easily to do all sorts of zany shit. All credit goes to the
original coders, this is some seriously cool stuff.

Also fixes some bizarre smoothing behaviour, reduces updateoverlays
calls since now not every single structure in the game tries smoothing
with nothing.

<img width="1349" height="1349" alt="image"
src="https://github.com/user-attachments/assets/9b7cecd7-3c47-448b-9dd8-9b904640bf82"
/>
<img width="1349" height="1349" alt="image"
src="https://github.com/user-attachments/assets/647d75a2-1bff-45ca-ab92-0aea10631afd"
/>

---------

Co-authored-by: Matt Atlas <liermattia@gmail.com>

code/game/objects/structures/light_pole.dm

@@ -58,7 +58,7 @@
 /obj/effect/overlay/street_light
 	icon = 'icons/obj/structure/urban/poles.dmi'
 	icon_state = "street_light"
-	plane = EFFECTS_ABOVE_LIGHTING_PLANE
+	plane = ABOVE_LIGHTING_PLANE
 
 /obj/effect/overlay/street_light/classic
 	icon_state = "classic_lamp_light"

code/game/objects/structures/weapons_rack.dm

@@ -159,7 +159,7 @@
 		transform_matrix.Translate((((world.icon_size/2)+BASE_OFFSET_RIFLE_SLOT) - world.icon_size) + (i*INTER_OFFSET_RIFLE_SLOT), 0)
 
 		//Why not the rifle itself you might ask? Because there's the safety icon on it
-		var/mutable_appearance/weapon_appearance = mutable_appearance(G.icon, G.icon_state, plane = src.plane, flags = G.appearance_flags, layer = G.layer)
+		var/mutable_appearance/weapon_appearance = mutable_appearance(G.icon, G.icon_state, plane = src.plane, layer = G.layer)
 		weapon_appearance.transform = transform_matrix
 
 		visual_holder.overlays += weapon_appearance