Wrap the GTS library for 3D mesh operations ## Thanks This code originates from the work carried out by **Thomas J. Duck** and shared on Sourceforge <https://sourceforge.net/u/tomduck/profile> ## Quick roadmap 1. port code from the old Sourceforge [repo](https://sourceforge.net/projects/pygts) 2. update code for python3 (???) 3. unit test code 4. improve functionalities