CGAL Alpha Wrap 3 browser engine

CGAL 6.0.1 Alpha_wrap_3: GPL-3.0-or-later OR commercial CGAL license.
Copyright (c) 2019-2022 Google LLC (USA).
Authors: Pierre Alliez, Cedric Portaneri, Mael Rouxel-Labbe,
Andreas Fabri, Michael Hemmer. See the original source for all copyright notices.
https://www.cgal.org/license.html
https://github.com/CGAL/cgal/releases/tag/v6.0.1

Obloid browser bridge: GPL-3.0-or-later. Bridge and build recipe: source.zip.
Unmodified CGAL and Boost sources are downloaded by the pinned build recipe.
Boost 1.87.0: Boost Software License 1.0.
Emscripten 4.0.15: MIT / University of Illinois NCSA licenses.

The local browser implementation is provided for evaluation. Public distribution
requires a GPL compliance or commercial-license decision for the combined work.