This add support to enable vlan aware bridge,
and management interfaces

example: 1 bridge and 1 administration port on vlan 100

auto vmbr0
iface vmbr0 inet manual
        bridge_ports eth0
        bridge_stp off
        bridge_fd 0
        bridge_vlan_aware yes
        bridge_vids 10-15

auto vmbr0.100
iface vmbr0.100 inet static
        address X.X.X.X
        netmask 255.255.255.0
        gateway X.X.X.X

bridge_vids is optional, and allow on the specified vlans.(current take 1 value or range, need to be improve with list)
If not specified, the allowed vlan are 2-4094.
vlan 1 is the default pvid. (all untagged traffic is going to this vlan).

scripts:
- /etc/network/if-up.d/bridgevlan

manage bridge vlan aware configuration

- /etc/network/if-up.d/bridgevlanport

manage bridge vlan admin port

-/etc/network/if-pre-up.d/vlan
-/etc/network/if-post-down.d/vlan

replace current vlan package, without vconfig usage and cleanups
It's only needed to create vlan interface from bridge_ports.
Signed-off-by: Alexandre Derumier <aderumier@odiso.com>