Add function in matrixmanagement skill
Merge branch 'master' of https://github.com/ludovicl/IA54_taquin

# By Arnaud de Villeneuve
# Via Arnaud de Villeneuve
* 'master' of https://github.com/ludovicl/IA54_taquin:
  GUI v0.2: - First draft of the actual puzzle, error at Puzzle:35 when launched with a NullPointerException except the line only contains Graphics.setColor, weird. - Not sure if size parameter is really necessary in SharedValues, not used yet
  GUI version 0.1: PuzzleCreator launches a basic empty window at the end of it's initialization

Conflicts:
	sarl/PuzzleCreator.sarl
	sarl/Square.sarl