Added tpstat support

castor/tape/legacymsg/AdminMarshal.cpp

castor/tape/legacymsg/AdminMarshal.hpp

castor/tape/legacymsg/CMakeLists.txt

castor/tape/legacymsg/TapeConfigRequestMsgBody.cpp

castor/tape/legacymsg/TapeConfigRequestMsgBody.hpp

castor/tape/legacymsg/TapeStatReplyMsgBody.cpp

castor/tape/legacymsg/TapeStatReplyMsgBody.hpp

castor/tape/legacymsg/TapeStatRequestMsgBody.cpp

castor/tape/legacymsg/TapeStatRequestMsgBody.hpp

castor/tape/tapeserver/daemon/AdminAcceptHandler.cpp

castor/tape/tapeserver/daemon/AdminAcceptHandler.hpp

castor/tape/tapeserver/daemon/DriveCatalogue.cpp

h/Castor_limits.h