Make VirtIO and automatic logon opt-in in the Windows 11 configure script

Add -InstallVirtIO and -EnableAutomaticLogon switches to
Configure-Windows.ps1 so it can run standalone on a physical machine.
Autounattend.xml passes both switches during the virtual machine install.

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

seediso/windows11/Configure-Windows.ps1

@@ -1,3 +1,8 @@
+param(
+    [switch]$InstallVirtIO,
+    [switch]$EnableAutomaticLogon
+)
+
 $ErrorActionPreference = 'Stop'
 Set-StrictMode -Version Latest
 
@@ -91,7 +96,11 @@ function Enable-AutomaticLogon {
     Remove-ItemProperty -Path $winlogonPath -Name 'AutoLogonCount' -ErrorAction SilentlyContinue
 }
 
-Install-VirtIOGuestTools
+if ($InstallVirtIO) {
+    Install-VirtIOGuestTools
+}
 Install-OpenSSHServer
 Install-AdministratorAuthorizedKey
-Enable-AutomaticLogon
+if ($EnableAutomaticLogon) {
+    Enable-AutomaticLogon
+}