Added tokenizer for training

maca_common/include/util.hpp

maca_common/src/util.cpp

trainer/src/TrainInfos.cpp

trainer/src/Trainer.cpp

transition_machine/include/ActionBank.hpp

transition_machine/include/Config.hpp

transition_machine/src/ActionBank.cpp

transition_machine/src/Config.cpp

transition_machine/src/FeatureBank.cpp

transition_machine/src/Oracle.cpp