Allow creation of multiple users

scripts/Windows/Scripts/Context.ps1

@@ -6,7 +6,7 @@ class Context {
     [string]$EntryPoint;
     [string]$RootDir;
     [string]$BackupName;
-    [string]$UserName;
+    [string[]]$UserNames;
     [string]$AdminName = "Admin";
     [string]$ConfigRoot = "HKLM:\Software\PortValhalla";
     [string]$RunOnceName = "PortValhalla";