wired: add service configuration form

wired: add service configuration form

Add a new UI form to  facilitate wired networks
configuration.
This form will allow static addressing
configuration and customizing dns addresses.
Please note that this commit only provides the
visual part and doesn't implement the
functionality, which will follow in separate
commits.

Bug-AGL: SPEC-2676
Signed-off-by: Raquel Medina <raquel.medina@konsulko.com>
Change-Id: Ib851f0ed14d2885185d1c6b9292c627ef954d15b
(cherry picked from commit b591cf219f6c485eb054b628d62475a752f0ffa3)