In order to add management console functionality to Vertica
a master node is needed in the Vertica cluster. Changes are
made to rename the type of one instances in the cluster as
the master.
install_cluster and root enable api are directed to go to the
master node of the cluster.
Change-Id: I3c24531ce97e07d4b322849d7400d490ef8bd2e9
Closes-bug: #1523686