3 code files for Chapter 7, all to place in the Assets/Scripts/Game folder of the Unity project:

	- PlayerController.cs: More lines to it were added to this 	script during this chapter. Update of the current one.		

	- ScoreController.cs: New script that handles the player's 	score. Attach on InGame3DUI | Score GameObject.

	- GameManager.cs: More lines to it were added to this 	script during this chapter. Update of the current one.		
