Icpreconstructor

- Added a specific robot class, the modular bending actuator as published in https://paperswithcode.com/paper/image-based-backbone-reconstruction-for-non, with adaptions for faster and more accurate convergence
- Bug fix for the spaceCarving warmstart
- Added relative stopping criterion to the method `fit`

**Full Changelog**: https://github.com/MKHoffmann/icpReconstructor/compare/v0.1.4...v0.1.5

Fixed the requirements

Some changes intended for the last release.

Nothing changed, I just allowed the automatic release to PYPI

This is the initial release after lots and lots of cleanup.