Adds slot machines.

What it says on the tin.
It works with coins and shit.

emagging it is top lyl and shoots the coins at you.

Probabilities and values are currently completely arbitrary, feel free to suggest changes.

This does not place them on the map.

![slotmachinebetter gif](https://cloud.githubusercontent.com/assets/3975713/3461118/cb52ef82-021e-11e4-989f-6e41d5040275.gif)

Yeah but the procs are basically identical except for a single line. Replace that line with a dispense proc and you can delete the other twin proc.