unittest/eigen_ref.cpp: asConstRef should take input as Ref<const T>

* bp::extract will construct an Eigen::Ref on the fly as an rvalue using the registered converter
* move overload_base_get_item_for_std_vector from pinocchio to here -- changes behaviour of __getitem__
* redef exposeStdVectorEigenSpecificType to overload the boost vector_indexing_suite __getitem__
* move exposeStdVectorEigenSpecificType to std-vector.hpp header

pre-commit-ci[bot] authored 2 years ago and Wilson Jallet committed 2 years ago

for more information, see https://pre-commit.ci

* does not work properly

pre-commit-ci[bot] authored 2 years ago and Wilson Jallet committed 2 years ago

for more information, see https://pre-commit.ci

* tests we can expose std::vector<Matrix3d>
* test input and returning std::vector<Matrix> objects
* test specific functions for specific dims