parse_port_name_number_or_range fix range check

for port range  a:b,

we need to check that b > a

this kind of range is invalid

80:22
80:ssh
http:ssh

Signed-off-by: Alexandre Derumier <aderumier@odiso.com>
optimize bridge chains

fixme : I have this error "unable to update chain vmbrX".

But if I remove this check, the rules applying fine.

Signed-off-by: Alexandre Derumier <aderumier@odiso.com>
rename chain $bridge to $bridge-FW

and fix the activation bug.
compile: use verbose output when started from CLI
implement 'enable' option

And pass whole VM firewall config to generate_tap_rules_direction. That way we
have acces to {options} section.