Added new columns in the Services List

The following new columns were added to the Services List

- Total VMs
- Total CPUs
- Total Memory
- Total VM Disk Count
- Total VM Disk Space Allocated
- Total VM Disk Space Used
- Total VM Memory on Disk

https://bugzilla.redhat.com/show_bug.cgi?id=1115763
Merge pull request #703 from AparnaKarve/bz1115763_show_vms_in_services_list

Added new columns in the Services List