Word Scramble Project from Hacking with Swift

• Disallow answers that are shorter than three letters.
• Refactor all the else statements we just added so that they call a new method called showErrorMessage()
• Disallow answers that are just the start word
• Make a new loadDefaultWords() method that can be used for failures in our start.txt loading code
• Instead of shuffling the complete array everytime startGame is called, shuffle once and then use an increasing integer property to read different words when startGame() is called?
• Set a timer for the game to run, and making it start over once completed
• Set a score for the game, and provide feedback at the end based on score
• Show the user a screen so they can chooes to continue or quit
• Create a window to store high scores for the game