In this project, you will be focusing on allowing a customer to purchase one of three available items. You will also be authenticating the users credentials (username and password) at least once. The customers account details are as follows:

Customer	Username	Password	Account #	Member Level	Store Credit	Address
Jane Smith	jsmith	blue123	123456789	Gold	3000.00	100 W New Haven Ave, Melbourne, FL 32901

Product information is as follows:

SKU	Name	Items in unit	Price per unit	Quantity on Hand
HF-342	in Bolt	50	20.00	200
LK-322	in Nail	25	5.75	76
KF-231	Hammer	1	15.23	100

Create a C++ program to allow the user to purchase an item by entering the desired SKU and quantity. The customer may purchase multiple of that item but not more than the available quantity on hand. All purchases are made with store credit; therefore, the user cannot purchase items exceeding their store credit. There is a 6% sales tax on all items. Any incorrect transactions will display an appropriate error message. After the purchase is complete, show all details in a receipt format, including the updated credit balance.