MTV 1595: PVC name template

[yaacov]

Ref: https://issues.redhat.com/browse/MTV-1595

Issue:
Users operating automation want the capability to know the disk names in the OS in the yamls for the PVC's so they can easily know which PVC is liked to specific volume in a VM.

Fix:
Adding pvcNameTemplate field to the Plan CR and to each VM in the VM list of the plan.

PVCNameTemplate is a template for generating PVC names for VM disks.
The VM specific template will override the template set in the plan.

It follows Go template syntax and has access to the following variables:
 - .vmName: name of the VM
 - .planName: name of the migration plan
 - .diskIndex: initial volume index of the disk
 - .rootDiskIndex: index of the root disk
  
Examples:
   "{{.vmName}}-disk-{{.diskIndex}}"
   "{{if eq .DiskIndex .RootDiskIndex}}root{{else}}data{{end}}-{{.DiskIndex}}"

In the plan YAML:

spec:
   ...
   pvcNameTemplate:   "{{.vmName}}-disk-{{.diskIndex}}"

   vms:
    - name: some-vm
      pvcNameTemplate:   "{{.vmName}}-disk-{{.diskIndex}}"

[sonarqubecloud]

Quality Gate passed

Issues
3 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

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