Initial feature for drag / drop calendar events.

Wino.Mail.WinUI/Controls/Calendar/CalendarDragPackage.cs

@@ -0,0 +1,13 @@
+using Wino.Calendar.ViewModels.Data;
+
+namespace Wino.Calendar.Controls;
+
+internal sealed class CalendarDragPackage
+{
+    public CalendarDragPackage(CalendarItemViewModel calendarItemViewModel)
+    {
+        CalendarItemViewModel = calendarItemViewModel;
+    }
+
+    public CalendarItemViewModel CalendarItemViewModel { get; }
+}