tyr: refactoring on geojson validation
tyr: refactoring on geojson validation

kadhikari/navitia,kadhikari/navitia,antoine-de/navitia,CanalTP/navitia,CanalTP/navitia,Tisseo/navitia,Tisseo/navitia,CanalTP/navitia,kadhikari/navitia,Tisseo/navitia,pbougue/navitia,pbougue/navitia,patochectp/navitia,patochectp/navitia,kinnou02/navitia,Tisseo/navitia,Tisseo/navitia,kadhikari/navitia,xlqian/navitia,patochectp/navitia,xlqian/navitia,kinnou02/navitia,xlqian/navitia,pbougue/navitia,kinnou02/navitia,antoine-de/navitia,antoine-de/navitia,kinnou02/navitia,xlqian/navitia,CanalTP/navitia,CanalTP/navitia,patochectp/navitia,xlqian/navitia,pbougue/navitia,antoine-de/navitia