Implementing the matrix formats.

src/implementation/matrices/tnlChunkedEllpackMatrix_impl.h

src/implementation/matrices/tnlDenseMatrix_impl.h

src/implementation/matrices/tnlMatrix_impl.h

src/implementation/matrices/tnlMultidiagonalMatrix_impl.h

src/implementation/matrices/tnlSlicedEllpackMatrix_impl.h

src/implementation/matrices/tnlTridiagonalMatrix_impl.h

src/matrices/tnlDenseMatrix.h

src/matrices/tnlMatrix.h

src/matrices/tnlMultidiagonalMatrix.h

src/matrices/tnlTridiagonalMatrix.h

tests/benchmarks/share/CMakeLists.txt

tests/benchmarks/share/tnl-run-spmv-benchmark

tests/benchmarks/share/tnl-sparse-matrix-benchmark.cfg.desc

tests/benchmarks/sparse-matrix-benchmark.h

tests/benchmarks/tnlSpmvBenchmark.h

tests/benchmarks/tnlSpmvBenchmarkBase_impl.h

tests/benchmarks/tnlSpmvBenchmark_impl.h

tests/unit-tests/matrices/tnlChunkedEllpackMatrixTester.h