Write a simple implementation of a card deck to deal cards out randomly. Your Deck class will contain a list of card objects. Initially, the deck will contain one instance of each of the 52 possible cards. Your deck should implement a deal () method that chooses a random location from the list and "pops" that card. You should also implement a cardsLeft method that tells how many cards are left in the deck. Note: a more sophisticated Deck class is implemented in Chapter 3; using that design does not count.