added transition split

decoder/src/Decoder.cpp

reading_machine/include/Action.hpp

reading_machine/include/Config.hpp

reading_machine/include/ReadingMachine.hpp

reading_machine/include/Transition.hpp

reading_machine/include/TransitionSet.hpp

reading_machine/src/Action.cpp

reading_machine/src/Config.cpp

reading_machine/src/ReadingMachine.cpp

reading_machine/src/Transition.cpp

reading_machine/src/TransitionSet.cpp

torch_modules/include/LSTMNetwork.hpp

torch_modules/src/LSTMNetwork.cpp

trainer/src/Trainer.cpp