- The 'ConvexHull_mod' module compute the convex hull of a set of points.

  The program follows the Graham Scan algorithm and comes from the Miguel
  Vieira, 2014 ((c) MIT license) implementation, which has been improved
  and adapted to the MUESLI needs by É. Canot

  (c) Édouard Canot -- IPR/CNRS -- 2022-12-14

