Debugging the grid geometries.

examples/navier-stokes/navierStokesSolver.h

examples/navier-stokes/navierStokesSolver_impl.h

src/implementation/core/tnlArray_impl.h

src/implementation/mesh/tnlGrid2D_impl.h

src/implementation/mesh/tnlIdenticalGridGeometry_impl.h

src/implementation/mesh/tnlLinearGridGeometry_impl.h

...mplementation/schemes/diffusion/tnlLinearDiffusion_impl.h

src/mesh/tnlDummyMesh.h

src/mesh/tnlGrid.h

src/mesh/tnlIdenticalGridGeometry.h

src/mesh/tnlLinearGridGeometry.h

tools/src/tnl-view.cpp

tools/src/tnl-view.h