Shape-preserving refinement of an STL/Triangulation

This function performs a shape preserving refinement to add faces to an existing triangulation (struct or STL).

The function performs a shape preserving refinement of ta given triangulation. This input can be taken in the form of a Vertices,Faces structure pair, or ASCII/Binary STLs. It can then return the refined triangulation as either a Vertices,Faces pair or write an output STL file in either format. The argression for this refinement can be controlled. A demo script is included with some possible uses of the tool.