castor::utils::copyString() now takes an std::string as the src

castor/legacymsg/CupvProxyTcpIp.cpp

castor/legacymsg/RmcProxyTcpIp.cpp

castor/legacymsg/VdqmProxyTcpIp.cpp

castor/legacymsg/VmgrProxyTcpIp.cpp

castor/legacymsg/legacymsg.cpp

castor/tape/tapebridge/BridgeProtocolEngine.cpp

castor/tape/tapeserver/daemon/DriveCatalogueEntry.cpp

castor/utils/UtilsTest.cpp

castor/utils/utils.cpp

castor/utils/utils.hpp