first .osm format import

- import osm convert it to Drawing and use it as resolved path.
- Not ready , first test over lab/valbonne_oct_2020.osm

java/org/artisanlogiciel/games/minetest/Node.java

@@ -0,0 +1,2 @@
+package org.artisanlogiciel.games.minetest;public class Node {
+}