Implemented play() algorithm in Game class.
Finished implementing the play() algorithm. It's working! (yay)

TODO:
	- Fix the output having some bugs there and there (text displaying twice? text not displaying?)
	- Find out a way to display where the player arrives when getting on a goose cell (probably linked to the next proposition)
	- Find out a way to "chain" special cells (for example, teleport cell to goose cell)
Corrected Normalize and Board tests.