Add Analysis extension installation

images/win/scripts/Installers/Windows2019/Install-AnalysisExtenstion.ps1

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+###################################################################################
+##  File:  Install-AnalysisExtenstion.ps1
+##  Desc:  Install the Microsoft Analysis Services Projects Visual Studio extension
+###################################################################################
+
+
+$extensionUrl = "https://marketplace.visualstudio.com/_apis/public/gallery/publishers/ProBITools/vsextensions/MicrosoftAnalysisServicesModelingProjects/2.9.5/vspackage"
+$extensionDownloadPath = Join-Path $Env:TEMP "Microsoft.DataTools.AnalysisServices.vsix"
+Write-Host "Downloading Microsoft.DataTools.AnalysisServices.vsix extension"
+(New-Object System.Net.WebClient).DownloadFile($extensionUrl, $extensionDownloadPath)
+
+Write-Host "Installing Microsoft.DataTools.AnalysisServices.vsix extension"
+try
+{
+     $process = Start-Process `
+    -FilePath "C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\Common7\IDE\VSIXInstaller.exe" `
+    -ArgumentList ("/quiet", "$extensionDownloadPath") `
+    -Wait `
+    -PassThru
+}
+catch
+{
+    Write-Host "There is an error during Microsoft.DataTools.AnalysisServices.vsix installation"
+    $_
+    exit 1
+}
+
+
+$exitCode = $process.ExitCode
+
+if ($exitCode -eq 0 -or $exitCode -eq 1001) # 1001 means the extension is already installed
+{
+    Write-Host "Microsoft.DataTools.AnalysisServices.vsix installed successfully"
+}
+else
+{
+    Write-Host "Unsuccessful exit code returned by the installation process: $exitCode."
+    exit 1
+}
+
+#Cleanup installation files
+Remove-Item -Force -Confirm:$false $extensionDownloadPath
+
+exit $exitCode