Add example and test of a n-to-m topology, incuding sub-channel use

examples/n-m/Header.h

@@ -0,0 +1,24 @@
+/********************************************************************************
+ *    Copyright (C) 2014 GSI Helmholtzzentrum fuer Schwerionenforschung GmbH    *
+ *                                                                              *
+ *              This software is distributed under the terms of the             *
+ *              GNU Lesser General Public Licence (LGPL) version 3,             *
+ *                  copied verbatim in the file "LICENSE"                       *
+ ********************************************************************************/
+#ifndef FAIR_MQ_EXAMPLE_N_M_HEADER_H
+#define FAIR_MQ_EXAMPLE_N_M_HEADER_H
+
+#include <cstdint>
+
+namespace example_n_m
+{
+
+struct Header
+{
+    std::uint16_t id;
+    int senderIndex;
+};
+
+} // namespace example_n_m
+
+#endif /* FAIR_MQ_EXAMPLE_N_M_HEADER_H */