Document property maps and move them to Support Lib:
* Added new chapter "CGAL abd Boost Property Maps" (Property_map) to Support Lib:
- it is located in Point_set_processing_3/doc_tex/Property_map.
- it documents Dereference_property_map, First_of_pair_property_map, Second_of_pair_property_map and Nth_of_tuple_property_map.
* Renamed point_set_property_map.h as property_map.h
* Moved Normal_vector_property_map to Point_with_normal_3.h and renamed it Normal_of_point_with_normal_pmap.
* The code matches the documentation and uses the new API with property maps:
- The code uses the new API with property maps.
- The test suites work.
- The MFC and Qt demos work.
- Copied Pierre's comments in Reference Manual to C++ comments.
* Renaming:
- merge_simplify_point_set -> grid_simplify_point_set.
- read_xyz_point_set split() as read_xyz_points() + read_xyz_points_and_normals().
* Gyroviz stuff:
- merge_simplify_nearest_point_set renamed as grid_simplify_nearest_point_set and moved to Poisson demo (as it is limited to Gyroviz_point_3 points).
- The code in Point_set_processing_3 uses the new API with property maps.
Simplified the API:
- removed OrientableNormal_3, PointWithOrientableNormal_3, ReconstructionTriangulation_3, ReconstructionVertexBase_3 concepts.
- classes Orientable_normal_3, Reconstruction_triangulation_3 abd Reconstruction_vertex_base_3 are not documented anymore.
- For free functions provided with 2 variants mutable/non mutable, removed the non mutable one.
TODO:
- remove Orientable_normal_3 class.
- modify mst_orient_normals() to return an iterator over the first non oriented normal.
- fix Poisson MFC demo which does not compile anymore.