Adding authors to source code.

CMakeLists.txt

src/matrices/tnlChunkedEllpackMatrix.h

src/matrices/tnlSlicedEllpackMatrix.h

src/problems/tnlHeatEquationEocProblem.h

src/problems/tnlHeatEquationEocProblem_impl.h

src/problems/tnlHeatEquationEocRhs.h

src/problems/tnlHeatEquationProblem.h

src/problems/tnlHeatEquationProblem_impl.h