Support for opencamlib

[njh]

From the old MediaWiki WantedFeatures page

opencamlib ...

... a GPL licensed C++ library with Python bindings for creating toolpaths for cnc-machines.

opencamlib currently supports some features that are not available in PyCAM:

• waterline path with adaptive accuracy
• voronoi diagrams (to be used for polygon offsetting)
• better performance

Tasks:

• [ ] develop some python modules for interfacing with opencamlib (partly already done on their side)
• [ ] basically: how to convert a PyCAM 3D model to an opencamlib 3D model (and the other way around for the resulting toolpath)
• [ ] integrate opencamlib as a new separate backend (currently: triangle and ODE)
• [ ] update the Debian/Ubuntu/??? usage instructions
• [ ] integrate opencamlib into the windows package builder setup (pyinstaller)

[TurBoss]

maybe this could help https://github.com/vilemduha/blendercam/tree/master/scripts/addons/cam/opencamlib

[sumpfralle]

This looks like a good code example. Thank you for sharing it!