Extend DDS Example to use command interface

examples/MQ/3-dds/runDDSCommandUI.cxx

@@ -0,0 +1,44 @@
+// DDS
+#include "CustomCmd.h"
+// STD
+#include <iostream>
+#include <exception>
+#include <sstream>
+#include <thread>
+#include <atomic>
+
+using namespace std;
+using namespace dds;
+using namespace custom_cmd;
+
+int main(int argc, char* argv[])
+{
+    try
+    {
+        CCustomCmd ddsCustomCmd;
+
+        ddsCustomCmd.subscribeCmd([](const string& command, const string& condition, uint64_t senderId)
+        {
+            cout << "Received: \"" << command << "\"" << endl;
+        });
+
+        while (true)
+        {
+            int result = ddsCustomCmd.sendCmd("check-state", "");
+
+            if (result == 1)
+            {
+                cerr << "Error sending custom command" << endl;
+            }
+
+            this_thread::sleep_for(chrono::seconds(1));
+        }
+    }
+    catch (exception& _e)
+    {
+        cerr << "Error: " << _e.what() << endl;
+        return EXIT_FAILURE;
+    }
+
+    return EXIT_SUCCESS;
+}