add mob adding stronghold mobs

src/engine/objects/Mob.java

@@ -111,6 +111,8 @@ public class Mob extends AbstractIntelligenceAgent {
     public boolean StrongholdEpic = false;
     public boolean isDropper = false;
 
+    public Boolean isHellgateMob = false;
+
     public HashMap<PlayerCharacter,Float> hate_values;