Support --long option and more columns in output of hypervisor
list command, including 'Hypervisor Type', 'Host IP', 'State',
and 'vCPU Used', 'vCPUs', 'Memory MB Used', 'Memory MB' with
--long option.
Change-Id: I0c790c7835309dded03e230cf497168e19404537
Closes-Bug: #1637074