Core/Players: Load faction change items from db2 instead of db

Port From (https://github.com/TrinityCore/TrinityCore/commit/7b11d17f4928d17637ad8182f9c632d90f873db4)

Source/Game/Entities/Item/ItemTemplate.cs

@@ -260,6 +260,7 @@ namespace Game.Entities
         public ItemFlags2 GetFlags2() { return (ItemFlags2)ExtendedData.Flags[1]; }
         public ItemFlags3 GetFlags3() { return (ItemFlags3)ExtendedData.Flags[2]; }
         public ItemFlags4 GetFlags4() { return (ItemFlags4)ExtendedData.Flags[3]; }
+        public uint GetOtherFactionItemId() { return ExtendedData.FactionRelated; }
         public float GetPriceRandomValue() { return ExtendedData.PriceRandomValue; }
         public float GetPriceVariance() { return ExtendedData.PriceVariance; }
         public uint GetBuyCount() { return Math.Max(ExtendedData.VendorStackCount, 1u); }

Source/Game/Entities/Player/Player.Quest.cs

@@ -17,6 +17,7 @@
 
 using Framework.Constants;
 using Framework.Database;
+using Game.AI;
 using Game.Conditions;
 using Game.DataStorage;
 using Game.Groups;
@@ -27,7 +28,6 @@ using Game.Networking.Packets;
 using Game.Spells;
 using System;
 using System.Collections.Generic;
-using Game.AI;
 
 namespace Game.Entities
 {