[Windows] Add the list of installed PowerShell modules to documentation (#1266)

* documenation about powershell modules

* add powershell modules documenation

* add PSMODULES_ROOT_FOLDER

images/win/scripts/SoftwareReport/SoftwareReport.Common.psm1

@@ -243,6 +243,21 @@ function Get-PowerShellAzureModules {
     }
 }
 
+function Get-PowerShellModules {
+    $modules = (Get-ToolsetContent).powershellModules.name
+
+    $psModules = Get-Module -Name $modules -ListAvailable | Sort-Object Name | Group-Object Name
+    $psModules | ForEach-Object {
+        $moduleName = $_.Name
+        $moduleVersions = ($_.group.Version | Sort-Object -Unique) -join '<br>'
+
+        [PSCustomObject]@{
+            Module = $moduleName
+            Version = $moduleVersions
+        }
+    }
+}
+
 function Get-CachedDockerImages {
     return (docker images --digests --format "* {{.Repository}}:{{.Tag}}").Split("*") | Where-Object { $_ }
 }