[cta-taped] Remove support of manual mode for loading tapes (#1119)

mediachanger/CMakeLists.txt

mediachanger/DmcProxy.cpp

mediachanger/DmcProxy.hpp

mediachanger/DummyLibrarySlot.cpp

mediachanger/DummyLibrarySlot.hpp

mediachanger/LibrarySlot.cpp

mediachanger/LibrarySlotParser.cpp

mediachanger/LibrarySlotParser.hpp

mediachanger/LibrarySlotParserTest.cpp

mediachanger/MediaChangerFacade.cpp

mediachanger/MediaChangerFacade.hpp

mediachanger/TapeLibraryType.cpp

mediachanger/TapeLibraryType.hpp

tapeserver/castor/tape/tapeserver/daemon/CleanerSession.cpp

...castor/tape/tapeserver/daemon/DataTransferSessionTest.cpp

tapeserver/castor/tape/tapeserver/daemon/LabelSession.cpp

...er/castor/tape/tapeserver/daemon/TapeReadSingleThread.cpp

...stor/tape/tapeserver/daemon/TapeSingleThreadInterface.hpp

...r/castor/tape/tapeserver/daemon/TapeWriteSingleThread.cpp

tapeserver/readtp/ReadtpCmd.cpp