Reworks the morph. Makes it a more stealth ambush oriented antag (#15208)

* Reworks the morph

* Hunger points. Reproduce. Sprites. Other tweaks

* vent open. Convert to spells. Valid checks. Minor tweaks

* undo life hack

* Icons, Fixes, No more morphed lights

* Item eat fix. All eating takes 3 seconds

* Add sounds

* Fixes and tweaks. Pass airlock ability. Ambush screen alert

* Steel review fixes

* New dead morph sprite from Pewtershmitz

* Pass airlock sprite provided by Pewtershmitz

* No barsigns or cryo cells as mimic

* Gluttany ruin change

* Color fix. No forms fix

* fix the stupid icons

* Apply suggestions from code review

Co-authored-by: dearmochi <shenesis@gmail.com>

Co-authored-by: joep van der velden <15887760+farie82@users.noreply.github.com>
Co-authored-by: dearmochi <shenesis@gmail.com>

code/datums/spell.dm

@@ -225,7 +225,7 @@ GLOBAL_LIST_INIT(spells, typesof(/obj/effect/proc_holder/spell))
 	charge_counter = charge_max
 
 /obj/effect/proc_holder/spell/proc/perform(list/targets, recharge = 1, mob/user = usr, make_attack_logs = TRUE) //if recharge is started is important for the trigger spells
-	before_cast(targets)
+	before_cast(targets, user)
 	invocation()
 	if(user && user.ckey && make_attack_logs)
 		add_attack_logs(user, targets, "cast the spell [name]", ATKLOG_ALL)
@@ -244,7 +244,7 @@ GLOBAL_LIST_INIT(spells, typesof(/obj/effect/proc_holder/spell))
 	if(action)
 		action.UpdateButtonIcon()
 
-/obj/effect/proc_holder/spell/proc/before_cast(list/targets)
+/obj/effect/proc_holder/spell/proc/before_cast(list/targets, mob/user)
 	if(vampire_ability)
 		if(!before_cast_vampire(targets))
 			return