all: rename JointVisitorBase into JointUnaryVisitorBase

benchmark/timings.cpp

src/algorithm/aba-derivatives.hxx

src/algorithm/aba.hxx

src/algorithm/center-of-mass-derivatives.hxx

src/algorithm/center-of-mass.hxx

src/algorithm/centroidal-derivatives.hxx

src/algorithm/centroidal.hxx

src/algorithm/compute-all-terms.hpp

src/algorithm/crba.hxx

src/algorithm/jacobian.hxx

src/algorithm/kinematics-derivatives.hxx

src/algorithm/kinematics.hxx

src/algorithm/model.hxx

src/algorithm/regressor.hxx

src/algorithm/rnea-derivatives.hxx

src/algorithm/rnea.hxx

src/multibody/joint/joint-basic-visitors.hxx

src/multibody/joint/joint-composite.hxx

src/multibody/liegroup/liegroup-algo.hxx

src/multibody/visitor/joint-unary-visitor.hpp