Implement MultiCloud proxyed Designate
This submission contains implementation for supporting MultiCloud
proxy-ed Designate solution. The changes, mostly in dcae2_vm_init.sh,
are for registering Designate proxy by MultiCloud with A&AI; register
new DNS zone with the MultiCloud proxyed Designate service; configure
DCAE to use the new DNS zone, etc.
The submission for corresponding Heat template changes will be made separtely.
Issue-Id: DCAEGEN2-128
Change-Id: Ief8e91152c7d2f117aec3f21df54c1ed74ceef0f
Signed-off-by: Lusheng Ji <lji@research.att.com>