## Summary of Changes
The default iteration number (1) is too few for the remeshing algorithm
to produce something nice, given that we start from a rather nasty
triangulation at the end of alpha wrap.

## Release Management
* Affected package(s): `Alpha_wrap_3`
* Issue(s) solved (if any): -
* Feature/Small Feature (if any): -
* License and copyright ownership: no change
## Summary of Changes
There was a compilation error about
`tetrahedron_soup_to_triangulation_3()` when no named parameter was
given
It's fixed, and a test is added for different combinations of NP
## Release Management
* Affected package(s): SMDS_3
* License and copyright ownership: unchanged
## Summary of Changes
Add a new package computing the approximate Fréchet distance between two
polylines in dD under Euclidean metric, or decides if the distance is
smaller than a given value.
## Release Management
* Affected package(s): Frechet_distance
* Feature (if any):
[link](https://cgal.geometryfactory.com/CGAL/Members/wiki/Features/Frechet_Distance)
* License and copyright ownership: MPI, GeometryFactory, cnrs(?)
## TODO:
- [x] check branch size (@sloriot)
- [x] Make it work with `Epick_d<Dimension_tag<2>>` @sloriot
## Summary of Changes
`AABB_tree::closest_point()` for circles may provide wrong points if a
certain hints are provided.
See https://gist.github.com/MaelRL/3d33fa83f0eea80c94da0966bb425f3a
`do_intersect_circle_iso_rectangle_2()` considers inclusion not as in
intersection
## Release Management
* Affected package(s): Filtered_kernel, Intersections_2
## Summary of Changes
Added support for latest version of libpointmatcher.
Updated doc as libpointmatcher uses the deprecated boost/timer.hpp which
can cause a compilation error when building the library.
There is a PR at libpointmatcher to fix the deprecation bug since
months, but it still needs to be reviewed.
## Release Management
* Affected package(s): Installation
The comparison functor passed to the constraints hierarchy has a
pointer to the `Constrained_triangulation_plus_2` that contains it.
That means the defaulted move constructor and move assignment operator of `Polyline_constraint_hierarchy_2` cannot be used to
implement the move constructor and move assignment operator of
`Constrained_triangulation_plus_2`.
Add a special constructor for `Polyline_constraint_hierarchy_2`, that is
usee to move the hierarchy and reassign the comparison operator.