Volume metrics API to show all fields of list volumes API (only root admin)

[Pearl1594]

Description

list volumes metrics API has missing fields from list volumes API, which effects Primate UI
Addresses Issue: #3938

Types of changes

• Breaking change (fix or feature that would cause existing functionality to change)
• New feature (non-breaking change which adds functionality)
• Bug fix (non-breaking change which fixes an issue)
• Enhancement (improves an existing feature and functionality)
• Cleanup (Code refactoring and cleanup, that may add test cases)

[DaanHoogland]

too little information, but than you restrict full output even more. Can you add some more explanation @Pearl1594 ?

[yadvr]

I verified that in 4.13 no changes are needed, the issue is not valid for 4.13, keys are seen:

    {
      "account": "admin",
      "created": "2019-11-21T19:37:23+0000",
      "diskofferingdisplaytext": "Small Disk, 5 GB",
      "diskofferingid": "b3d20e7e-b888-488d-a930-a41ed239fd6a",
      "diskofferingname": "Small",
      "displayvolume": true,
      "domain": "ROOT",
      "domainid": "999bc3fb-f58b-11e9-a787-1a02163e4536",
      "hypervisor": "KVM",
      "id": "a8461799-b1d5-4a81-8b27-b3412f83abd9",
      "isextractable": true,
      "name": "testing-a-very-long-named-volume-just-to-see-how-it-would-look-in-primate-abc123",
      "path": "a8461799-b1d5-4a81-8b27-b3412f83abd9",
      "physicalsize": 221184,
      "provisioningtype": "thin",
      "quiescevm": false,
      "size": 5368709120,
      "sizegb": "5.00 GB",
      "state": "Ready",
      "storage": "PrimaryStorage",
      "storageid": "fd7d94b4-1672-3337-89f2-7dbc82e716f2",
      "storagetype": "Shared (DATADISK)",
      "tags": [],
      "type": "DATADISK",
      "utilization": "0.00",
      "virtualsize": 5368709120,
      "zoneid": "9170c586-d862-40ad-9361-58e13764480b",
      "zonename": "MeowZone"
    }