MOD: Automated gas station

This easy mod just adds to game automated (payment by cash card) gas stations.

>I think in the future, when a Cataclysm-Day happened, gas stations were such.

Sheme:
![1](https://cloud.githubusercontent.com/assets/6351438/3485738/9fa79b9c-03fb-11e4-965d-3378f01695f2.png)

1 - Native gas pumps. They have no gasoline! If you act with it, you have mesage "Out of order".
2 - Big tank with gasoline. When you make a purchase, from tank gasoline pumped into the pump.
3 - Terminal to pay gasoline
4 - vending machine and ATM
5 - just a sign with attention "No smoke".

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Interaction with terminal:
![2](https://cloud.githubusercontent.com/assets/6351438/3485747/897f61fa-03fc-11e4-99c6-2735de1df11b.png)

There you can select other gas pump to fill:
![3](https://cloud.githubusercontent.com/assets/6351438/3485748/b16258e4-03fc-11e4-98c9-119af5f440c7.png)

And buy gas (game asks you for cash card):
![4](https://cloud.githubusercontent.com/assets/6351438/3485749/e9bf74ec-03fc-11e4-8204-bcbc0094eb1c.png)

After succesfull payment you hear "Glug Glug Glug" and in choosed pump appears the gasoline (and decreases from tank). Now you can refill your car, canisters etc from pump as usual.

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Bonus:
Three items: silver/gold/platinum discount cards. If you have not discount, price for you $3.50 (discuss?) per unit. With discounts you have $3.30, $3.00, $2.50. I think, these cards must be rare, players to search for them.

![5](https://cloud.githubusercontent.com/assets/6351438/3485772/3e6096be-03ff-11e4-9c04-bcc17bba4457.png)


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This mod increased usefulness of money and cash cards.