Cart Functionality with Order Creation

[aambrose1]

• Removed migration files so that the updated Order model can work successfully because for some reason migrations command wasn't working to let Django know to update the table. Its pycache and migration files that make the amount of file changes so huge

• Added Payment Form to accept credit card info---one fix will be to validate the information

• Adding and removing cart items

• Added Checkout.html that creates an order and deletes the users cart products afterwards.

• Added headers and footers to some screens to make switching to shopping cart and order history better

[aambrose1]

Fixing the new bugs after fixing conflicts