Core/Entities: Added possibility to inherit StringIds from other entities

Port From (https://github.com/TrinityCore/TrinityCore/commit/88bbd27f8d007dca17bb0d244fcf7e753506734e)

Source/Game/Entities/Creature/Creature.cs

@@ -2915,6 +2915,15 @@ namespace Game.Entities
             return Global.ObjectMgr.GetCreatureTemplate(GetEntry()) != null ? Global.ObjectMgr.GetCreatureTemplate(GetEntry()).ScriptID : 0;
         }
 
+        public void InheritStringIds(Creature parent)
+        {
+            // copy references to stringIds from template and spawn
+            m_stringIds = parent.m_stringIds;
+
+            // then copy script stringId, not just its reference
+            SetScriptStringId(parent.GetStringId(StringIdType.Script));
+        }
+
         public bool HasStringId(string id)
         {
             return m_stringIds.Contains(id);

Source/Game/Entities/GameObject/GameObject.cs

@@ -2665,6 +2665,15 @@ namespace Game.Entities
             return GetGoInfo().ScriptId;
         }
 
+        public void InheritStringIds(GameObject parent)
+        {
+            // copy references to stringIds from template and spawn
+            m_stringIds = parent.m_stringIds;
+
+            // then copy script stringId, not just its reference
+            SetScriptStringId(parent.GetStringId(StringIdType.Script));
+        }
+
         public bool HasStringId(string id)
         {
             return m_stringIds.Contains(id);

Source/Game/Entities/Object/WorldObject.cs

@@ -1597,6 +1597,10 @@ namespace Game.Entities
                 if (summon != null)
                 {
                     summon.SetTempSummonType(despawnType);
+
+                    Creature thisCreature = ToCreature();
+                    if (thisCreature != null)
+                        summon.InheritStringIds(thisCreature);
                     return summon;
                 }
             }