Main menu item container
Inheritance: NamedItem
        public override void OnActivate(IPluginHost PluginHost)
        {
            this.PluginHost = PluginHost;
            this.Command = new TestCommand(PluginHost);
            PluginHost.CommandManager.RegisterCommand(Command);
            this.Configuration = new TestConfig(PluginHost.DatabaseManager, PluginHost.LogManager);
            PluginHost.ConfigurationManager.RegisterConfiguration(Configuration);

            menuItem = new MenuItem("Do it!");
            menuItem.Click += OnClick;
            PluginHost.WindowManager.AddMenuItem(menuItem);
        }