Reimplented CG solver with new template interface.

src/core/implementation/tnlSharedVector_impl.h

src/core/implementation/tnlVector_impl.h

src/core/implementation/vector-operations.h

src/core/tnlSharedVector.h

src/core/tnlVector.h

src/solvers/linear/krylov/implementation/tnlCGSolver_impl.h

...olvers/linear/krylov/implementation/tnlGMRESSolver_impl.h

src/solvers/linear/krylov/tnlCGSolver.h

src/solvers/linear/krylov/tnlGMRESSolver.h

...vers/linear/stationary/implementation/tnlSORSolver_impl.h

src/solvers/tnlCGSolver.h

src/solvers/tnlIterativeSolver.h

src/solvers/tnlSORSolver.h

tests/benchmarks/matrix-solvers-benchmark.h

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