casino 0.1.0

New games

• Blackjack
• Slot machine
• Poker (5-card)
  • Stud
  • Draw

New features

• New Blackjack, Poker, and Slots R6 classes for playing games.
• New Player R6 class is used for storing player information and history.
• New Deck R6 class is used for playing card games.
• Interactively play() casino games.
• Run setup() to specify where player information is stored locally.