Fix win_psDscAdapter for ClassBase resources PSCredentails fix convert to System.Management.Automation.PSCredential - if change to recognize user information

Author: mimachniak

adapters/powershell/psDscAdapter/win_psDscAdapter.psm1

@@ -423,11 +423,11 @@ function Invoke-DscOperation {
                                 $validateProperty = $cachedDscResourceInfo.Properties | Where-Object -Property Name -EQ $_.Name
                                 Write-DscTrace -Operation Debug -Message "Property type: $($validateProperty.PropertyType)"
                                 if ($validateProperty.PropertyType -eq 'PSCredential') {
-                                    if (-not $_.Value.Username -or -not $_.Value.Password) {
+                                    if (-not $_.Value.secureObject.Username -or -not $_.Value.secureObject.Password) {
                                         "Credential object '$($_.Name)' requires both 'username' and 'password' properties" | Write-DscTrace -Operation Error
                                         exit 1
                                     }
-                                    
+
                                     $username = $_.Value.secureObject.username
                                     $password = $_.Value.secureObject.password | ConvertTo-SecureString -AsPlainText -Force