Calendar page and shell improvements to support navigations. Enabled page caching.

Wino.Core.Domain/Models/Calendar/CalendarPageNavigationArgs.cs

@@ -1,4 +1,6 @@
-namespace Wino.Core.Domain.Models.Calendar
+using System;
+
+namespace Wino.Core.Domain.Models.Calendar
 {
     public class CalendarPageNavigationArgs
     {
@@ -6,5 +8,10 @@
         /// When the app launches, automatically request the default calendar navigation options.
         /// </summary>
         public bool RequestDefaultNavigation { get; set; }
+
+        /// <summary>
+        /// Display the calendar view for the specified date.
+        /// </summary>
+        public DateTime NavigationDate { get; set; }
     }
 }