Changed the way path are handled, changed MCD class to BD class

CMakeLists.txt

decoder/include/Decoder.hpp

decoder/src/Decoder.cpp

maca_common/include/Dict.hpp

maca_common/src/Dict.cpp

tape_machine/include/BD.hpp

tape_machine/include/Classifier.hpp

tape_machine/include/Config.hpp

tape_machine/include/TapeMachine.hpp

tape_machine/src/BD.cpp

tape_machine/src/Classifier.cpp

tape_machine/src/Config.cpp

tape_machine/src/FeatureBank.cpp

tape_machine/src/TapeMachine.cpp

tests/src/test_decode.cpp

tests/src/test_train.cpp

trainer/include/Trainer.hpp

trainer/src/Trainer.cpp