Adds buttons to augment the tcgplayer shopping cart experience.
This script injects buttons into the TCGPlayer Shopping Cart page:
* Save Non-Direct Packages
- allows you to select a minimum number of cards for consideration here
* Save Items Over Price
- allows you to input a specific maximum price
* Remove Duplicate Cards
- if you uncomment lines 280-283, you will enable "commander mode" for singleton card quantities (you may have to click it a few times and it might give an error message but it will eventually work)
at the bottom,
* Actually Add All To Cart
- although you have to do this for each page in your cart, it's better than just getting an error when you try to add them with the TCGPlayer Button.
