Add gdb and gcc and friends to the debugging image

windows-kvm/debug/setup_scripts/0-11-install-w64devkit.ps1

@@ -0,0 +1,16 @@
+$wdkVersion = "1.16.1"
+Write-Output "Installing w64devkit v${wdkVersion}..."
+$wdkUrl = "https://github.com/skeeto/w64devkit/releases/download/v${wdkVersion}/w64devkit-${wdkVersion}.zip"
+$wdkZip = Join-Path $env:TEMP "wdk.zip"
+Invoke-WebRequest -Uri $wdkUrl -OutFile $wdkZip -ErrorAction Stop
+
+$wdkInstallDir = Join-Path $env:ProgramFiles "w64devkit"
+Expand-Archive -Path $wdkZip -DestinationPath "$env:TEMP" -ErrorAction Stop -Force
+Move-Item -Path (Join-Path $env:TEMP "w64devkit") `
+    -Destination $wdkInstallDir -ErrorAction Stop
+
+# Add the bin directory to the PATH:
+[Environment]::SetEnvironmentVariable(
+    "Path",
+    [Environment]::GetEnvironmentVariable("Path", [EnvironmentVariableTarget]::Machine) + ";C:\Program Files\w64devkit\bin",
+    [EnvironmentVariableTarget]::Machine)