[WIP] Snapshot and clones with hotplug/unplug

[ayush-patni]

A running DVT based VM and a PVC based VM
Steps:

1. Hotplug disk to the running VM based on PVC.
2. Verify the disk is attached to VM
3. Add data to disk
   a. Identify newly attached disk.
   b. Create file or do dd on new disk
4. Reboot the VM,
5. After reboot check if disk is still attached.
   6.Make sure newly added data on new vm disk is intact
6. Create clones of hotplugged disks PVCs
7. Attach clones of the hotplugged to VMs(attach pvc based VM cloned disk to DVT VM and viceversa)
8. Write new IOs on cloned disks and make sure vm disk is intact.
9. Unplug(Dettach) the disks from vm
10. Verify disk is successfully detached using console or cli
11. login into VM and confirm disk is no longer listed.

[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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[ocs-ci]

Unknown PR validation on existing cluster

Cluster Name: apatni-cnv-clone2
Cluster Configuration:
PR Test Suite: tier1
PR Test Path: tests/functional/workloads/cnv/test_vm_hotpl_snap_clone.py
Additional Test Params:
OCP VERSION: 4.18
OCS VERSION: 4.18
tested against branch: master

Job state: ABORTED.