Fixes the Sun/Weather and Ports Vore's Lighting SS

New lighting system is needed to handle updating literally 14k+ tiles whenever the sun moves.  The straight port seems to have had no adverse effects from what I could see.  Don't know if it's more performant but it doesn't seem to be less.

I didn't expect the latter would be needed for the former.

code/modules/lighting/lighting_overlay.dm

@@ -125,7 +125,7 @@
 	if (force)
 		total_lighting_overlays--
 		global.lighting_update_overlays     -= src
-		global.lighting_update_overlays_old -= src
+		LAZYREMOVE(SSlighting.currentrun, src)
 
 		var/turf/T = loc
 		if(istype(T))

code/modules/lighting/lighting_setup.dm

@@ -1,6 +1,14 @@
+// Create lighting overlays on all turfs with dynamic lighting in areas with dynamic lighting.
 /proc/create_all_lighting_overlays()
-	for(var/zlevel = 1 to world.maxz)
-		create_lighting_overlays_zlevel(zlevel)
+	for(var/area/A in world)
+		if(!A.dynamic_lighting)
+			continue
+		for(var/turf/T in A)
+			if(!T.dynamic_lighting)
+				continue
+			new /atom/movable/lighting_overlay(T, TRUE)
+			CHECK_TICK
+		CHECK_TICK
 
 /proc/create_lighting_overlays_zlevel(var/zlevel)
 	ASSERT(zlevel)