card_game_constantine 1.0.0

This is a simple card game, inspired by the studio game tutorial done through the Online Pragmatic Studio course on Ruby by Mike and Nicole. Basically, three random cards would be assigned to players. For each round, each player would be assigned a random card and they can then use it to attack another player's card. At the start of the game, type in how many rounds do you want to play. After the rounds, have been completed, you can either continue playing or type quit to exit. Upon exiting, the high scores of the players will be printed out.