First pass at modal dialog

Aurora/Design/Views/BaseDialogViewModel.cs

@@ -0,0 +1,15 @@
+using System;
+using Aurora.Design.Views.Main;
+namespace Aurora.Design.Views
+{
+    public class BaseDialogViewModel : BaseViewModel
+    {
+        public BaseDialogViewModel()
+        {
+        }
+
+        public FinishDialogDelegate Finish { get; set; }
+
+        public DialogReturnType ReturnObject { get; protected set; }
+    }
+}