minor changes (format + move class in stl package )

documentation/rawformat

@@ -0,0 +1,40 @@
+
+Maze/Labyrinth raw format extension .raw
+
+ Model of labyrinth storing only paths not walls. wall are regenerated later on based on adjacent paths. 
+ each position (x,y) stores what move can be done from here to go do deeper path.
+ a node is tagged OPEN and contained in openList if all moves from its position have not been resolved
+ a node is tagged CLOSED when fully processed
+
+position is (x,y)
+
+See org.artisanlogiciel.games.WallsProvider
+
+file starts with
+'LAB0'
+32bits Width
+32bits Height
+
+Width * ( 16bits )
+*
+Height.
+
+
+    /** WARNING don't change those values, they are used as it is for optimisation */
+    private final static short FLAGLENGTH=7;
+    private final static short CLEAR=0; // mandatory 0 since array creation is initialized with 0.
+    private final static short HORIZONTAL=1;
+    private final static short VERTICAL=2;
+    private final static short DIRECTION=4; // could we get rid of that to free one bit for other purpose ?
+    private final static short POSITIVE=8;
+    private final static short NEGATIVE=16;
+    private final static short OPEN=32;     // can be reused once generation is completed
+    private final static short CLOSED=64;   // can be reused once generation is completed
+    private final static short LEFT=Brick.LEFT<<FLAGLENGTH|DIRECTION|HORIZONTAL|NEGATIVE;
+    private final static short DOWN=Brick.DOWN<<FLAGLENGTH|DIRECTION|VERTICAL|POSITIVE;
+    private final static short RIGHT=Brick.RIGHT<<FLAGLENGTH|DIRECTION|HORIZONTAL|POSITIVE;
+    private final static short UP=Brick.UP<<FLAGLENGTH|DIRECTION|VERTICAL|NEGATIVE;
+    private final static short ENTRY=Brick.ENTRY<<FLAGLENGTH; // flag when a wall should be open to access this.
+    private final static short GOAL=Brick.GOAL<<FLAGLENGTH; // flag when a wall should be open to access this.
+    private final static short SOLVED=64<<FLAGLENGTH; // flag when solution is on this path.
+    private final static short FREE=128<<FLAGLENGTH; // free flag