Set Up Start Game Sequence

[alienboy13]

• Create a Canvas StartGameCanvas with a child GameObject StartGameObjects.

• Create a TextMeshPro GameObject with the text "Press [Space] to start the game" in the center of the screen

• Create a Method CheckForGameStart() in GameSceneController

• Have it so when the player presses the spacebar, the text in the center of the screen disappears and the Ball object receives a method call telling it the game is starting