Marketplace VM Deployment - automate domain name mapping

[swilliams11]

Complete the Cloud Run domain name mapping setup for both the UI and the API. I need to investigate if this is possible. The domain name mapping must be managed by the Deployment Manager, so it must be listed as a valid resource for this to work.

1. If the UI domain name mapping is not provided, then skip the mapping here.
2. The API domain name is required, so VM deployment should always complete this step.

depends on:

• Marketplace VM deployment - allow user to provide a static IP address. #345
• Add Additional fields to Marketplace launch page #317

[swilliams11]

We can allow the user can create a static IP address for the API and we can automatically complete the domain name mapping for the API. We can also automatically complete the domain name mapping for the UI as well. However, the user must obtain the IPs (IPV4 and IPV6) after the UI deployment and add those IPs as A/AAAA records to their DNS. If the user does not complete this step within an appropriate time, then the auto domain name mapping would fail for the UI.

Also, since the Deployment Manager does not manage a domain name mapping, then we have to use Cloud Build with gcloud commands to complete this mapping.