Inventory Started

I'm going to have to make traits, items, inventory, and equipment work
closely together. Now that there's a start to each of them, I can work
on the interconnections. There's going to be a lot of content generated
from these classes, so I need to get them right.

Right now Equipment are items, but equipmentslots and itemslots are
separate. There is one equipmentslot for each piece of armor/weapon that
can be equipped.

I think navigating the inventory should be next. I'll need to make a
user interface to accomplish this.