Split Display (gui) and Maze (work), prepare for another model

- prepare for a shorter storage model without any resolution

java/org/artisanlogiciel/games/maze/model/LabyModelProvider.java

@@ -0,0 +1,26 @@
+package org.artisanlogiciel.games.maze.model;
+
+import org.artisanlogiciel.games.maze.MovesProvider;
+import org.artisanlogiciel.games.maze.WallsProvider;
+
+public interface LabyModelProvider
+extends WallsProvider,
+        MovesProvider
+{
+    /**
+     * add a new direction(s) exiting ones are kept
+     */
+    void addDirection(int x, int y, short path);
+
+    /* set direction(s) existing ones are lost */
+    void setDirection(int x, int y, short path);
+
+    /**
+     * is there no wall in that direction ?
+     **/
+    boolean canMoveInDirection(int x, int y, short direction);
+
+    /** like getMoves but include resolved information */
+    short getPath(int x, int y);
+
+}