Added SparseMatrixRowView.

src/TNL/Containers/Segments/CSR.h

src/TNL/Containers/Segments/CSR.hpp

src/TNL/Containers/Segments/CSRSegmentView.h

src/TNL/Containers/Segments/CSRView.h

src/TNL/Containers/Segments/CSRView.hpp

src/TNL/Containers/Segments/Ellpack.h

src/TNL/Containers/Segments/Ellpack.hpp

src/TNL/Containers/Segments/EllpackSegmentView.h

src/TNL/Containers/Segments/EllpackView.h

src/TNL/Containers/Segments/EllpackView.hpp

src/TNL/Containers/Segments/SlicedEllpack.h

src/TNL/Containers/Segments/SlicedEllpack.hpp

src/TNL/Containers/Segments/SlicedEllpackView.h

src/TNL/Containers/Segments/SlicedEllpackView.hpp

src/TNL/Matrices/SparseMatrix.h

src/TNL/Matrices/SparseMatrix.hpp

src/TNL/Matrices/SparseMatrixRowView.h

src/TNL/Matrices/SparseMatrixRowView.hpp

src/TNL/Matrices/SparseMatrixView.h

src/TNL/Matrices/SparseMatrixView.hpp