Replaced zmq directory with new code in castor/tape/utils

CMakeLists.txt

castor/messages/CMakeLists.txt

castor/messages/TapeserverProxyDummyFactory.cpp

castor/messages/TapeserverProxyDummyFactory.hpp

castor/messages/TapeserverProxyFactory.hpp

castor/messages/TapeserverProxyZmq.cpp

castor/messages/TapeserverProxyZmq.hpp

castor/messages/TapeserverProxyZmqFactory.cpp

castor/messages/TapeserverProxyZmqFactory.hpp

castor/messages/messages.cpp

castor/messages/messages.hpp

castor/tape/reactor/CMakeLists.txt

castor/tape/reactor/ZMQPollEventHandler.hpp

castor/tape/reactor/ZMQReactor.cpp

castor/tape/reactor/ZMQReactor.hpp

castor/tape/rmc/CMakeLists.txt

castor/tape/rmc/RmcDaemonMain.cpp

castor/tape/rmc/RmcDaemonTest.cpp

castor/tape/tapeserver/daemon/CMakeLists.txt

castor/tape/tapeserver/daemon/DataTransferSession.cpp