Show Stack Size on tooltip, more relevant than max health in all but walls and vehicles

[npuldon]

I think it's a pretty easy argument to make that stack size info would be nice to have on the tooltip when you mouse over an entity. Max health is almost on every entity and it is easy to argue that stack size is much more important attribute to know than max health in all entity but say walls and vehicles.

[CJ5Boss]

I would agree, that would be a nice feature, especially so I can sort things out in my inventory and know how much I can have.