Updated source code headers.

MeshMapper.cs

@@ -1,17 +1,23 @@
-using System;
+/*
+Copyright 2009-2021 Intel Corporation
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+using System;
 using System.IO;
 using System.Net;
-using System.Web;
-using System.Text;
 using System.Net.Sockets;
-using System.Net.Security;
-using System.Windows.Forms;
-using System.Collections.Generic;
-using System.Security.Cryptography;
-using System.Deployment.Application;
-using System.Collections.Specialized;
-using System.Security.Cryptography.X509Certificates;
-using Microsoft.Win32;
 
 namespace MeshCentralRouter
 {