renaming and re-titling the app client tutorial to utility client

tutorials/utility_client_tutorial/step3.cpp

@@ -0,0 +1,51 @@
+#include <websocketpp/config/asio_no_tls_client.hpp>
+#include <websocketpp/client.hpp>
+
+#include <websocketpp/common/thread.hpp>
+#include <websocketpp/common/memory.hpp>
+
+#include <iostream>
+#include <string>
+
+typedef websocketpp::client<websocketpp::config::asio_client> client;
+
+class websocket_endpoint {
+public:
+    websocket_endpoint () {
+        m_endpoint.clear_access_channels(websocketpp::log::alevel::all);
+        m_endpoint.clear_error_channels(websocketpp::log::elevel::all);
+
+        m_endpoint.init_asio();
+        m_endpoint.start_perpetual();
+
+        m_thread.reset(new websocketpp::lib::thread(&client::run, &m_endpoint));
+    }
+private:
+    client m_endpoint;
+    websocketpp::lib::shared_ptr<websocketpp::lib::thread> m_thread;
+};
+
+int main() {
+    bool done = false;
+    std::string input;
+    websocket_endpoint endpoint;
+
+    while (!done) {
+        std::cout << "Enter Command: ";
+        std::getline(std::cin, input);
+
+        if (input == "quit") {
+            done = true;
+        } else if (input == "help") {
+            std::cout 
+                << "\nCommand List:\n"
+                << "help: Display this help text\n"
+                << "quit: Exit the program\n"
+                << std::endl;
+        } else {
+            std::cout << "Unrecognized Command" << std::endl;
+        }
+    }
+
+    return 0;
+}