add ipinfo files

Signed-off-by: Etienne Basset <etienne.basset@ensta.org>
update makefile (ipinfo)

Signed-off-by: Etienne Basset <etienne.basset@ensta.org>
add a new  ipinfo command

Signed-off-by: Etienne Basset <etienne.basset@ensta.org>
correct ipinfo

Signed-off-by: Etienne Basset <etienne.basset@ensta.org>