Added HighScoresCardGameViewController class and scene, and currentScoreToHighScores: abstract method
Removed UI elemnts and code for showing last results and history MVC
Removed corresponding ViewControllers
Added PlayingCardView implementation from lecture 7
Added PlayingCards images.
Removed more unused UI elements and code
Added UIView for showing individual cards
Added methods for creating CardViews, changed updateUI method, removed some initialization code in SetCardViewController
Added Grid helper class
Added methods for positioning card views using Grid class
Added card views positioning method implementation
Added tap gesture implementation for playing card, modified positioning method for playing card, added new view for set card.
Added initialization code for Set Card View
Added diamond symbols drawing method
Added drawSymbols method, Oval shape and Squiggle shape drawing helper methods,  colorForShape method
Added code for drawing SetCardView
Added method for removing matched Set Cards from screen
Added dealMoreCards button for set Card Game View Controller, added addCardsToGame: method in game model, made updateUI public
Added howManyCardsInGame: method
Added dealMoreCards button and method, updated gameRestratButton:, modified a CardMatchingGame to work with dealMoreCards: method