Processor-driven effects system & Minor Lighting Performance Tweaks (#1697)

Adds a new process-based effects system with the goal of reducing insane lag from sparks.
Currently only supports sparks, but should be easily extendable to other types of effects.
Also fixes a bug with airlocks where the light from bolts wasn't updating.

Refactors bears slightly to reduce duplicated code & pointless spark object creation and destruction.
Lighting profiler will now log /turf locations & names correctly.
Doors will no longer trigger way more visibility checks than they need to.

code/modules/admin/admin_verbs.dm

@@ -204,7 +204,8 @@ var/list/admin_verbs_debug = list(
 	/client/proc/dsay,
 	/client/proc/toggle_recursive_explosions,
 	/client/proc/restart_sql,
-	/client/proc/flush_lighting_queues
+	/client/proc/flush_lighting_queues,
+	/client/proc/debug_pooling
 	)
 
 var/list/admin_verbs_paranoid_debug = list(
@@ -295,7 +296,8 @@ var/list/admin_verbs_hideable = list(
 	/client/proc/roll_dices,
 	/proc/possess,
 	/proc/release,
-	/client/proc/toggle_recursive_explosions
+	/client/proc/toggle_recursive_explosions,
+	/client/proc/debug_pooling
 	)
 var/list/admin_verbs_mod = list(
 	/client/proc/cmd_admin_pm_context,	// right-click adminPM interface,