Add project files.

ManagementApp/Models/MessageHeader.cs

@@ -0,0 +1,17 @@
+namespace ManagementApp.Models
+{
+    public class MessageHeader
+    {
+        public int ID { set; get; }
+
+        public string Message { set; get; }
+
+        /// <summary>
+        /// Return Message Status
+        /// 0 is Error
+        /// 1 is Success
+        /// </summary>
+        public int Status { set; get; }
+
+    }
+}