Reorganize examples:

* The examples/ directory is renamed to example/

* Each program is in its own directory with its own build scripts

example/websocket-client/websocket_client.cpp

@@ -0,0 +1,38 @@
+//
+// Copyright (c) 2013-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+//[example_websocket_client
+
+#include <beast/core.hpp>
+#include <beast/websocket.hpp>
+#include <boost/asio.hpp>
+#include <iostream>
+#include <string>
+
+int main()
+{
+    // Normal boost::asio setup
+    std::string const host = "echo.websocket.org";
+    boost::asio::io_service ios;
+    boost::asio::ip::tcp::resolver r{ios};
+    boost::asio::ip::tcp::socket sock{ios};
+    boost::asio::connect(sock,
+        r.resolve(boost::asio::ip::tcp::resolver::query{host, "80"}));
+
+    // WebSocket connect and send message using beast
+    beast::websocket::stream<boost::asio::ip::tcp::socket&> ws{sock};
+    ws.handshake(host, "/");
+    ws.write(boost::asio::buffer(std::string("Hello, world!")));
+
+    // Receive WebSocket message, print and close using beast
+    beast::multi_buffer b;
+    ws.read(b);
+    ws.close(beast::websocket::close_code::normal);
+    std::cout << beast::buffers(b.data()) << "\n";
+}
+
+//]