Python triangle library

The `triangle` library provides Python bindings to Jonathan Shewchuk's robust C library for 2D Delaunay triangulation and constrained Delaunay triangulation, as well as high-quality mesh generation. It processes inputs like sets of points, segments, and holes to generate triangulations and meshes. The current version is 20250106, with a release cadence that appears to be on an as-needed basis, indicated by its date-based versioning.