added 2 methods. create_item prompts the user for the necessary inputs to create an item. ask_yes_no_question() contains the procedure for asking a yes/no question and converts the answer to a boolean
added 2 methods. create_item prompts the user for the necessary inputs to create an item.
ask_yes_no_question() contains the procedure for asking a yes/no question and converts the answer to a boolean

jhooey/shopping-cart-trends