优化更新代码，添加界面功能并整合

ShrlAlgo.RvKits/RvCivil/CreateOpeningsCmd.cs

@@ -0,0 +1,26 @@
+using System.Windows;
+
+using Autodesk.Revit.Attributes;
+using Autodesk.Revit.DB;
+using Autodesk.Revit.UI;
+using Autodesk.Revit.UI.Selection;
+
+using Nice3point.Revit.Toolkit.External;
+
+
+namespace ShrlAlgo.RvKits.RvCivil;
+
+[Transaction(TransactionMode.Manual)]
+[Regeneration(RegenerationOption.Manual)]
+public class CreateOpeningsCmd : ExternalCommand
+{
+    public override void Execute()
+    {
+        //CreateOpeningsViewModel viewModel = new();
+        //CreateOpeningsView view = new(viewModel);
+        //view.ShowDialog();
+        SingletonChildWindowManager.ShowOrActivate<CreateOpeningsView, CreateOpeningsViewModel>();
+    }
+
+
+}