Adds Shadow demons (#19732)

* reshuffle

* shared base type

* moves this to the base type

* the monster

* event

* FUCK

* better sprites

* refactors bloodcrawl, more nice sprites

* review stuff

* Apply suggestions from code review

Co-authored-by: Sirryan2002 <80364400+Sirryan2002@users.noreply.github.com>

* heart of darkness

* pre TM tweaks

* ARGH

* hopefully fixes double hits

* tweaks

* derp

* tweaks

* TEMP RUNTIME REMOVE LATER

* fixes

* runtime fixes

* cig runtime fix

* review + another runtime fix

* re adds sprite

* removes runtime

* oop I forgor

* DRUNK CODING

* SPRITES

Co-authored-by: Sirryan2002 <80364400+Sirryan2002@users.noreply.github.com>

code/game/objects/items/candle.dm

@@ -141,6 +141,13 @@
 	if(lit)
 		set_light(CANDLE_LUM * 2)
 
+
+/obj/item/candle/extinguish_light(force)
+	if(!force)
+		return
+	infinite = FALSE
+	wax = 1 // next process will burn it out
+
 #undef TALL_CANDLE
 #undef MID_CANDLE
 #undef SHORT_CANDLE