Core/Scripting: added OnPlayerUpdateZone for player scripts

src/server/game/Scripting/ScriptMgr.h

@@ -724,6 +724,8 @@ class PlayerScript : public ScriptObject
 
         // Called when a player is bound to an instance
         virtual void OnBindToInstance(Player* /*player*/, Difficulty /*difficulty*/, uint32 /*mapId*/, bool /*permanent*/) { }
+
+        virtual void OnUpdateZone(Player* /*player*/, uint32 /*newZone*/, uint32 /*newArea*/) { }
 };
 
 class GuildScript : public ScriptObject
@@ -993,6 +995,7 @@ class ScriptMgr
         void OnPlayerCreate(Player* player);
         void OnPlayerDelete(uint64 guid);
         void OnPlayerBindToInstance(Player* player, Difficulty difficulty, uint32 mapid, bool permanent);
+        void OnPlayerUpdateZone(Player* player, uint32 newZone, uint32 newArea);
 
     public: /* GuildScript */