Added INSTALL_RPATH and INSTALL_RPATH_USE_LINK_PATH to CppKafka target to allow discoverability of the RdKafka.so w/o having to update LD_LIBRARY_PATH
Added INSTALL_RPATH and INSTALL_RPATH_USE_LINK_PATH to CppKafka target to allow discoverability of the RdKafka.so w/o having to update LD_LIBRARY_PATH

mfontanini/cppkafka,mfontanini/cppkafka