What's Changed
* add pre eval callback and stringify user info for logging by LGro in https://github.com/boschresearch/blackboxopt/pull/109
* expose num evaluations in reference test, fix docstrings by LGro in https://github.com/boschresearch/blackboxopt/pull/114
* remove redundant non dominated sorting in hypervolume vis by LGro in https://github.com/boschresearch/blackboxopt/pull/116
**Full Changelog**: https://github.com/boschresearch/blackboxopt/compare/v5.0.0...v5.0.1