This updates the ingress objects to move them back to the
extensions API. While 1.16 moves them under the networking
api, they're still rendered and deployed as extensions/ objects.
This move prevents issues from arising where older versions of
kubernetes might still be deployed during an upgrade, as the
move to the networking API is nonfunctional at this time
Change-Id: I814bbc833b5b9f79f34aefc60b9c1f9890bca826
Signed-off-by: Steve Wilkerson <sw5822@att.com>