Initialisation de la classe Point
Merge branch 'master' of https://github.com/CharlesBrandon/JeuDeGo.git
Merge branch 'master' of https://github.com/JacquesLine/JeuDeGo.git
Merge branch 'master' of https://github.com/JacquesLine/JeuDeGo.git
Création de la méthode Jouer