[dev1001] Item stacking

[Kaida]

As a relatively new player from Windhurst, I think it would be helpful for Yaguda Necklaces to be stackable. I kept filling up my inventory and not knowing why. It might reduce the value at the auction house if everyone had stacks of these, so maybe a 12 stack limit would be reasonable.

This ^ for the love of everything big and purple this ^