Support basic VLAN tags

[zephyrbot]

Reported by Anselmo L. S. Melo:

As an end user I need to be able to add and remove VLAN tags:

• Stripping VLAN tags from packets: Match VID to the corresponding virtual interface
• Inserting VLAN tags into packets: When they are sent through a virtual interface, then forward to physical one

(Imported from Jira ZEP-1949)

[zephyrbot]

Blocks ZEP-1950

[thenakliman]

Starting work on providing support of VLAN

[nashif]

@jukkar can this be closed?