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.
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