Updated Product controller paging to count the number of items and set the # of pages
Added test to update paging based on category selected
Added unit test to add products to cart and added the code for the cart
Added unit test for adding a single product with 2 different quantities more than once.
Added unit test to remove items from cart
Added test to calculate total cost in cart
added test to clear contents of cart
Adding the cart controller and the view
added tests to add to cart, products are moved to cart screen, and can view cart contents
added the rest of the cart and shipping details for customers
Added the shipping information form for completing an order