Implement IP lookup for VCH create endpoint

[jak-atx]

Details:
We need to implement the findings from this issue #6551 regarding the H5C VCH wizard being able find the correct IP of vic-machine-service.

Acceptance Criteria:
Demonstrate ability to deploy OVA with vic-machine-service and have the H5C vch wizard be able to find the correct API endpoint and get a successful response.

[andrewtchin]

need to find an API that can view a VM's tags https://github.com/vmware/vic-product/blob/master/installer/tagvm/tagvm.go
alternatively, find some other way the appliance can identify itself that is visible to the H5C

[jooskim]

After a discussion with @andrewtchin, it seems that we can use the value property as another way of tagging of VIC OVA appliance. This functionality is tracked in vmware/vic-product#1018, and once available, I could modify the vic-service Java project to discover VIC OVA VM based on that information, and expose the IP address of it through a REST endpoint so the Angular app can consume it.

[jooskim]

Issue moved to vmware/vic-ui #26 via ZenHub