Moved file structure and dismangled C++ code and python bindings

.gitignore

bob/learn/boosting/Boosting.py

bob/learn/boosting/ExponentialLoss.py

bob/learn/boosting/LUTTrainer.py

bob/learn/boosting/LogitLoss.py

bob/learn/boosting/LossFunction.py

bob/learn/boosting/StumpTrainer.py

bob/learn/boosting/TangentialLoss.py

bob/learn/boosting/__init__.py

bob/learn/boosting/boosted_machine.cpp

bob/learn/boosting/cpp/BoostedMachine.cpp

bob/learn/boosting/cpp/BoostedMachine.h

bob/learn/boosting/cpp/Functions.h

bob/learn/boosting/cpp/JesorskyLoss.cpp

bob/learn/boosting/cpp/JesorskyLoss.h

bob/learn/boosting/cpp/LUTMachine.cpp

bob/learn/boosting/cpp/LUTMachine.h

bob/learn/boosting/cpp/LUTTrainer.cpp

bob/learn/boosting/cpp/LUTTrainer.h

bob/learn/boosting/cpp/LossFunction.cpp