quantum: Ignore missing properties on deserialization

Some API extensions add properties to the entities. When Jackson sees
these properties it tries to set them on the entity, but since they are
not modelled it fails.

Added a Jackson annotation to ignore such cases, thus API extensions
that aren't modelled yet will not cause an exception in the client.

Signed-off-by: Mike Kolesnik <mkolesni@redhat.com>
quantum: Add properties for creating network/port

These properties are needed when creating new networks and ports via the
API.

Signed-off-by: Mike Kolesnik <mkolesni@redhat.com>