Create a project called Contractor Calculator. ▪ The view controller layout should contain two TextFields, one button, and eight labels ▪ The Calculate button should add the labor and material costs from the TextFields and put the result in the label next to SubTotal. Tax should be calculated using a 5% rate (use a constant) and displayed in the label next to Tax. The tax and subtotal should be added together and displayed in the label next to Total.
