Create private zone and DNS records in the resource group specified by baseDomainResourceGroupName. The records should be cleaned up with destroy cluster.

The ControlPlaneEndpoint will be available in the Cluster spec and can be used to populate the DNS records.  

Currently we create both A and CNAME records in different scenarios: https://github.com/openshift/installer/blob/master/data/data/azure/cluster/dns/dns.tf

Ideally we do this in the InfraReady hook, before machine creation, so that control plane machines can pull ignition immediately.