[CR] eat from ground

Portion of Items from smashed vending machine:

![1](https://cloud.githubusercontent.com/assets/6351438/3555098/82775fae-0913-11e4-9cc2-70753551b5a6.png)

Press `[E]`, press `Esc`:
All items from vending machine (doubles excluded):
![2](https://cloud.githubusercontent.com/assets/6351438/3555105/9f8b7288-0913-11e4-9133-eae04549e52f.png)


Instead of doing all this manually, I'm pretty sure you'll be able to declare an inventory object, populate it with inventory::form_from_map(), then do something like what game::inv_type() does to bring up a menu to select the food.