Add card.rb init specs
Completes card class and spec.
Add deck.rb and init specs
Completes Deck class and spec.
Complete add/remove hand functions and spec
Complete 2, 3, 4 of a kind identity functions and spec
Complete all possible hand identity functions and spec
Add hand value property.
Adds easy #beats and hand compairisons for straight_flush, straight, flush and high_card
Works on edge cases for #beats.