Implemented Hand Class

Implemented a hand class to manage each player’s hand. Stores the
cards, adds and removes them as called, sorts the hand, and prints it
Don't need java.util in deck

Removed java.util from deck, as it was not being used
Created CrazyEightsGame and Driver

Created a CrazyEightsGame class that manages the deck and hands, and
plays the game. The driver class simply launches a CrazyEightsGame
instance to play the game