Use Python to build an application that provides the following features: 1. Input for the name & email of the client (0.5 mark) 2. If name & email are not entered an error message should be performed after running the code (1.5 marks) 3. At least 4 items on sale using input boxes. (2 marks) 4. Aside from the error message in point 2, when running the code you must also find: o the subtotal = price of the items (without vat) and display it (1.5 marks) o The value of vat = 5% of the subtotal and display it (1.5 marks) o The total = subtotal + vat and display it (1 mark) 5. Creativity & originality (2 marks)