space corrections in Makefile

Signed-off-by: Etienne Basset <etienne.basset@ensta.org>
add Solicited-Node Address

Signed-off-by: Etienne Basset <etienne.basset@ensta.org>
add ipv6_is_global and ipv6_is_ula

Signed-off-by: Etienne Basset <etienne.basset@ensta.org>
add a decoder for IPv6 EUI-64 format

Signed-off-by: Etienne Basset <etienne.basset@ensta.org>
update readme (EUI-64 is supported)

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