[overtime] Experience Gained

Go Horrible Places
Meet Horrible Beings
Kill Them
Learn things

It is now possible to gain experience through wanton slaughter.  Of course, you can't do anything with XP yet, but it accumulates!

Also, entities can have a treasure value. Unfortunately, I feel like this breaks some of the pattern I had already established, so I'll go back and refactor things differently.

The new plan is that only certain items will have a Treasure value.   Cash sounds like a good representative of value, and should fit nicely into inventory.  Of course, that implies I'll either need a stacking system, or cash will be treated differently from other "items" ,   My original plan was for Cash to get stored as just a value counter separate from the actual inventory contents, but then how do I pick it up from bodies? 

I have also reached the point where I desperately need another menu for looting bodies and treasure piles.  It's just fine to pick up a body and move it, but to strip the stuff from them should not be an all-or-nothing choice.    I also need to create a menu to manipulate the player's equipment, which means we're ready to revisit equipment and finally give the monsters some goodies.