Add SQL Server Data Tools extensions to VS2019 (#559)

* add extensions

* add exe installation

* change Reporting Services name

* add switch to function, add validation

* change install wdk to function

* Fix template

* fix scripts name

* add quotes

* more quotes

* one more quotes

* get rid of duplicate code

* move quotes to function

* small improvment to wix installation

* add comment to validate extensions script

images/win/scripts/Installers/Validate-Wix.ps1

@@ -0,0 +1,46 @@
+################################################################################
+##  File:  Validate-Wix.ps1
+##  Desc:  Validate WIX.
+################################################################################
+
+Import-Module -Name ImageHelpers -Force
+
+function Get-WixVersion {
+    $regKey = "HKLM:\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\*"
+    $installedApplications = Get-ItemProperty -Path $regKey
+    $Version = ($installedApplications | Where-Object { $_.DisplayName -and $_.DisplayName.toLower().Contains("wix") } | Select-Object -First 1).DisplayVersion
+    return $Version
+}
+
+$WixToolSetVersion = Get-WixVersion
+
+if($WixToolSetVersion) {
+    Write-Host "Wix Toolset version" $WixPackage.version "installed"
+}
+else {
+    Write-Host "Wix Toolset is not installed"
+    exit 1
+}
+
+if(Test-IsWin19)
+{
+    $WixPackageVersion = Get-VSExtensionVersion -packageName "WixToolset.VisualStudioExtension.Dev16"
+    $VSver = "2019"
+}
+else
+{
+    $WixPackageVersion = Get-VSExtensionVersion -packageName "WixToolset.VisualStudioExtension.Dev15"
+    $VSver = "2017"
+}
+
+# Adding description of the software to Markdown
+$SoftwareName = "WIX Tools"
+
+$Description = @"
+_Toolset Version:_ $WixToolSetVersion<br/>
+_WIX Toolset Studio $VSver Extension Version:_ $WixPackageVersion<br/>
+_Environment:_
+* WIX: Installation root of WIX
+"@
+
+Add-SoftwareDetailsToMarkdown -SoftwareName $SoftwareName -DescriptionMarkdown $Description