VLAN management update - 2

Added state handler for #port level #VLAN #configuration in bridge module. This will handle the activation/de-activation of port level VLAN parameters as #port-VLAN, #ingress-filtering control, #acceptable-frame-types, etc ...

Ethernet update 23 ...
[commit 2ea6118e3f682923457725e2e07c17a2137528c5]