Core/Items: Implemented reagent bag

Port From (https://github.com/TrinityCore/TrinityCore/commit/6f9e359701bd75705f73f23af65affb5a5bed573)

Source/Game/Handlers/ItemHandler.cs

@@ -287,7 +287,7 @@ namespace Game
 
                 // if inventory item was moved, check if we can remove dependent auras, because they were not removed in Player::RemoveItem (update was set to false)
                 // do this after swaps are done, we pass nullptr because both weapons could be swapped and none of them should be ignored
-                if ((autoEquipItem.PackSlot == InventorySlots.Bag0 && autoEquipItem.Slot < InventorySlots.BagEnd) || (dstbag == InventorySlots.Bag0 && dstslot < InventorySlots.BagEnd))
+                if ((autoEquipItem.PackSlot == InventorySlots.Bag0 && autoEquipItem.Slot < InventorySlots.ReagentBagEnd) || (dstbag == InventorySlots.Bag0 && dstslot < InventorySlots.ReagentBagEnd))
                     pl.ApplyItemDependentAuras(null, false);
             }
         }

Source/Game/Handlers/VoidStorageHandler.cs

@@ -99,25 +99,7 @@ namespace Game
                 return;
             }
 
-            uint freeBagSlots = 0;
-            if (!voidStorageTransfer.Withdrawals.Empty())
-            {
-                // make this a Player function
-                for (byte i = InventorySlots.BagStart; i < InventorySlots.BagEnd; i++)
-                {
-                    Bag bag = player.GetBagByPos(i);
-                    if (bag != null)
-                        freeBagSlots += bag.GetFreeSlots();
-                }
-                int inventoryEnd = InventorySlots.ItemStart + _player.GetInventorySlotCount();
-                for (byte i = InventorySlots.ItemStart; i < inventoryEnd; i++)
-                {
-                    if (player.GetItemByPos(InventorySlots.Bag0, i) == null)
-                        ++freeBagSlots;
-                }
-            }
-
-            if (voidStorageTransfer.Withdrawals.Length > freeBagSlots)
+            if (!voidStorageTransfer.Withdrawals.Empty() && voidStorageTransfer.Withdrawals.Length > _player.GetFreeInventorySlotCount(ItemSearchLocation.Inventory))
             {
                 SendVoidStorageTransferResult(VoidTransferError.InventoryFull);
                 return;