[Windows] Implement new directories hierarchy (#8616)

images/windows/scripts/build/Configure-Toolset.ps1

@@ -0,0 +1,78 @@
+################################################################################
+##  File:  Configure-Toolset.ps1
+##  Team:  CI-Build
+##  Desc:  Configure Toolset
+################################################################################
+
+Function Set-DefaultVariables
+{
+    param
+    (
+        [Parameter(Mandatory=$true)]
+        [object] $EnvVars,
+        [Parameter(Mandatory=$true)]
+        [string] $ToolVersionPath
+    )
+
+    $templates = $EnvVars.pathTemplates
+    foreach ($template in $templates)
+    {
+        $toolSystemPath = $template -f $ToolVersionPath
+        Add-MachinePathItem -PathItem $toolSystemPath | Out-Null
+    }
+
+    if (-not ([string]::IsNullOrEmpty($EnvVars.defaultVariable)))
+    {
+        setx $toolEnvVars.defaultVariable $ToolVersionPath /M | Out-Null
+    }
+}
+
+# Define executables for cached tools
+$toolsEnvironmentVariables = @{
+    Python = @{
+        pathTemplates = @(
+            "{0}",
+            "{0}\Scripts"
+        )
+    }
+    go = @{
+        pathTemplates = @(
+            "{0}\bin"
+        )
+        variableTemplate = "GOROOT_{0}_{1}_X64"
+    }
+}
+
+$toolsToConfigure = @("Python", "Go")
+$tools = Get-ToolsetContent | Select-Object -ExpandProperty toolcache `
+                            | Where-Object { $toolsToConfigure -contains $_.name }
+
+Write-Host "Configure toolset tools environment..."
+foreach ($tool in $tools)
+{
+    $toolEnvVars = $toolsEnvironmentVariables[$tool.name]
+
+    if (-not ([string]::IsNullOrEmpty($toolEnvVars.variableTemplate)))
+    {
+        foreach ($version in $tool.versions)
+        {
+            Write-Host "Set $($tool.name) $version environment variable..."
+
+            $foundVersionArchPath = Get-ToolsetToolFullPath -Name $tool.name -Version $version -Arch $tool.arch
+            $envName = $toolEnvVars.variableTemplate -f $version.Split(".")
+
+            setx $envName $foundVersionArchPath /M | Out-Null
+        }
+    }
+
+    if (-not ([string]::IsNullOrEmpty($tool.default)))
+    {
+        Write-Host "Use $($tool.name) $($tool.default) as a system $($tool.name)..."
+
+        $toolVersionPath = Get-ToolsetToolFullPath -Name $tool.name -Version $tool.default -Arch $tool.arch
+
+        Set-DefaultVariables -ToolVersionPath $toolVersionPath -EnvVars $toolEnvVars
+    }
+}
+
+Invoke-PesterTests -TestFile "Toolset"