This should patch Triangulation class for an issue with higher dimensions
It has 2 changes:
line 121-124 remove the interior faces from the list of hull faces
line 145-151 and 158-166: check if the simplex to add lies fully outside of the current convex hull. This is done by verifying that the orientation of the face with respect to the new point is not equal to the orientation of the face with respect to the center point. If part of the simplex lies inside of the hull, we do not add it.