this has already led to some confusion. move some of the code
upstream to opm-models and remove the rest of the duplicated code.
the remainder of MatrixBlock.hpp is renamed to SmallDenseMatrixUtils.hpp
this has already led to some confusion. move some of the code
upstream to opm-models and remove the rest of the duplicated code.
the remainder of MatrixBlock.hpp is renamed to SmallDenseMatrixUtils.hpp