I18n cart table

This is what the table cart layout would look like. The CSS would need to be cleaned up, but it gets the idea across.

Reference to conversation in #192 
My concern with having one label element (for quantity) and two spans (price and total) for those mini labels is that labels could be defined with new styles and it would only affect one of the three.

Option would be to have `.cart-mini-labels` extend labels? Or force them all to have similar styles that would overwrite the label defaults.