Renamed factory files

include/CMakeLists.txt

include/sot-core/sotAdditionalFunctions.h

include/sot-core/sotBinaryOp.h

include/sot-core/sotDerivator.h

include/sot-core/sotFactory.h

include/sot-core/sotMacrosSignal.h

include/sot-core/sotPool.h

include/sot-core/sotUnaryOp.h

src/CMakeLists.txt

src/factory/sotAdditionalFunctions.cpp

src/factory/sotAdditionalFunctions.h

src/factory/sotFactory.cpp

src/factory/sotFactory.h

src/factory/sotMacrosSignal.h

src/factory/sotPool.cpp

src/factory/sotPool.h

src/feature/sotFeature1D.cpp

src/feature/sotFeatureAbstract.cpp

src/feature/sotFeatureGeneric.cpp

src/feature/sotFeatureJointLimits.cpp