Revit功能区面板添加提示信息

为扩展功能区中的控件添加提示信息：

	   application.CreateRibbonTab("TestTab");
        RibbonPanel ribbonPanel = application.CreateRibbonPanel("TestTab","RibbonPanel");
        PushButtonData buttonData = new PushButtonData("Button1","Button1",@"F:\RevitProject\Supportor1218\Supportor1218\bin\Debug\Supportor1218.dll", "Supportor1218.Class1");
        buttonData.ToolTip = "This is A Test Demo";
        PushButton pushButton = ribbonPanel.AddItem(buttonData) as PushButton;
        pushButton.LargeImage = new BitmapImage(new Uri(@"F:\RevitProject\Demo190115\Image\test.png"));