Objective: Create a display text to let the player know to shoot the asteroid to start the game.
Step 1: Create the UI Text Object
Step 2: Setup the variable on the UIManager to attach the text object to
Step 3: Attach the text object to the UIManager
Step 3: In the UIManager start turn the text on as we want it on at the beginning for the game
Step 4: Create a method on the UIManager to turn off the start text
Step 5: On the asteroid setup communication to the UIManager
Step 6: On the asteroid before destroying it trigger the method on the UIManager
