Update Measure-DbaDiskSpaceRequirement.ps1
Update Measure-DbaDiskSpaceRequirement.ps1

[x] Function was not returning the mountpoint in a scenario where a windows credential must be provided;
[x] Confusion between volume and Mountpoint is now resolved. Using gwmi Win32_Mountpoint instead of Get-DbaDiskSpace;
[x] Return a column to specify the file location (join type);
[x] Change ValueFromPipelineByPropertyName list to make it work with credentials
[x] Change Select-DefaultView. Destination machine MUST be provided because the mountpoint is on this machine and
    destination Logical file name is really the same name as the source. It's the key column! So I removed the second copy.
alevyinroc/dbatools