Update to work with VM on VMFS and\or vVols

[nikeman7]

Requesting to update this project to support VMs on VMFS and\or vVols. Currently the SourceVolume and Sources for the Invoke-PfaDbRefresh and the New-PfaDbSnapshot respectively, won't match on the Serial #s from the Source Virtual Disk and the Volume on the PFA. These are the errors returned when running against a VM...

Invoke-PfaDbRefresh - gets "cannot bind argument to parameter 'SourceVolume' because it is an empty string"
New-PfaDbSnapshot - gets "failed to create snapshot for target database FlashArray Volume with: Cannot bind argument parameter 'Sources' because it is null"

Also for Example #5 for the Invoke-PfaDbRefresh - SQL to SQL seems to fails at the same place for the Serial # comparison even though the description says it is database to database without a snapshot. "Refresh a single database from the database specficied by the SourceDatabase parameter residing on the instance specified by RefreshSource" Is that the correct assumption?