Matrix2D: minor optimisation to avoid array copy on matrix creation
Matrix2D: minor optimisation to avoid array copy on matrix creation

djowatts/mathnet-spatial,csjune/mathnet-spatial,uml-robotics/mathnet-spatial,csjune/mathnet-spatial,Giusy151/mathnet-spatial,cqwang/mathnet-spatial,uml-robotics/mathnet-spatial,csjune/mathnet-spatial,Giusy151/mathnet-spatial,cqwang/mathnet-spatial,djowatts/mathnet-spatial