Added new extended stencil handling from Mattijs.

src/OpenFOAM/meshes/MeshObject/MeshObject.C

src/OpenFOAM/meshes/MeshObject/MeshObject.H

...meshes/polyMesh/mapPolyMesh/mapDistribute/mapDistribute.C

...meshes/polyMesh/mapPolyMesh/mapDistribute/mapDistribute.H

...lyMesh/mapPolyMesh/mapDistribute/mapDistributeTemplates.C

src/finiteVolume/Make/files

...iteVolume/fvMesh/extendedStencil/extendedCentredStencil.C

...iteVolume/fvMesh/extendedStencil/extendedCentredStencil.H

src/finiteVolume/fvMesh/extendedStencil/extendedStencil.C

src/finiteVolume/fvMesh/extendedStencil/extendedStencil.H

...ncil/extendedStencilMeshObjects/centredCECStencilObject.C

...ncil/extendedStencilMeshObjects/centredCECStencilObject.H

...ncil/extendedStencilMeshObjects/centredCFCStencilObject.C

...ncil/extendedStencilMeshObjects/centredCFCStencilObject.H

...ncil/extendedStencilMeshObjects/centredCPCStencilObject.C

...ncil/extendedStencilMeshObjects/centredCPCStencilObject.H

...ncil/extendedStencilMeshObjects/centredFECStencilObject.C

...ncil/extendedStencilMeshObjects/centredFECStencilObject.H

...encil/extendedStencilMeshObjects/upwindCECStencilObject.C

...encil/extendedStencilMeshObjects/upwindCECStencilObject.H