Add Outlook Inspired and Stock Market demos

OutlookInspiredApp/DevExpress.DevAV/AttachedFile.cs

@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace DevExpress.DevAV {
+    public class TaskAttachedFile : DatabaseObject {
+        public virtual EmployeeTask EmployeeTask { get; set; }
+        public long? EmployeeTaskId { get; set; }
+        public string Name { get; set; }
+        public byte[] Content { get; set; }
+    }
+}