Adds Hellspawn (Nar'Sie demon mob) (#20291)

* HellSpawn Mob

* added spawner

* summary for the namespace

* larger collider, cannot enter single tile corridors.

* fix

* remove duplicate from yml, fix attributions.

* moved action to shared, moved comp to shared, networked comp, separated heal, fixed attributions

* removed flammable from hellspawn
removed the healing effect from firestarter ability (healing can be separate ability).

* Update attributions.yml

fix attributions

* fix

* fix

Resources/Prototypes/Damage/modifier_sets.yml

@@ -237,6 +237,14 @@
     Radiation: 0.2
     Caustic: 0.0
 
+- type: damageModifierSet
+  id: HellSpawn
+  coefficients:
+    Heat: 0.0
+    Radiation: 0.0
+    Shock: 0.8
+    Bloodloss: 0.4
+
 - type: damageModifierSet
   id: Cockroach
   coefficients: