Creates the necessary files for our bowling game. Also includes our first test to ensure the bowling game has an empty array of @rolls.
Adds an initialize method that creates an array of @rolls.
Adds Test to make sure that when a gutter ball is rolled the score is 0."
creates a roll and score method
Adds a test to expect a score of 20, when one pin is each time.
Edits the roll and score method to account for more than rolls of 0.
Refactors to use let in the testing enivornment to set up the game.
Creates a test to make sure a spare is recorded properly.
Adds functionality to the score method to allow spares to be recorded.
Adds a test to make sure strikes are scored properly.
Adds functionality to the score method to allow it to account for strikes.