Remove articulated models

CMakeLists.txt

include/hpp/fcl/articulated_model/joint.h

include/hpp/fcl/articulated_model/joint_config.h

include/hpp/fcl/articulated_model/link.h

include/hpp/fcl/articulated_model/model.h

include/hpp/fcl/articulated_model/model_config.h

include/hpp/fcl/math/sampling.h

src/CMakeLists.txt

src/articulated_model/joint.cpp

src/articulated_model/joint_config.cpp

src/articulated_model/link.cpp

src/articulated_model/model.cpp

src/articulated_model/model_config.cpp

src/math/sampling.cpp