benchmark : add option to dump demands
benchmark : add option to dump demands

Tisseo/navitia,Tisseo/navitia,xlqian/navitia,xlqian/navitia,Tisseo/navitia,CanalTP/navitia,Tisseo/navitia,xlqian/navitia,xlqian/navitia,Tisseo/navitia,CanalTP/navitia,xlqian/navitia,CanalTP/navitia,CanalTP/navitia,CanalTP/navitia