What's Changed
* Fixed issue with photon registry when multiple registry objects are i… by jernsting in https://github.com/wwu-mmll/photonai/pull/48
* Fix/save optimum pipe by jernsting in https://github.com/wwu-mmll/photonai/pull/51
* Added multiprocessing switch for parallel computing by jernsting in https://github.com/wwu-mmll/photonai/pull/53
* Changed versioning to pbr, resolved circular input errors, moved base… by jernsting in https://github.com/wwu-mmll/photonai/pull/52
* Create dependabot.yml by jernsting in https://github.com/wwu-mmll/photonai/pull/54
* Feature/new imports by jernsting in https://github.com/wwu-mmll/photonai/pull/55
* minor features added by RLeenings in https://github.com/wwu-mmll/photonai/pull/56
* debug imbalanced data transform unit test by RLeenings in https://github.com/wwu-mmll/photonai/pull/57
* Debug/debug imbalanced test by RLeenings in https://github.com/wwu-mmll/photonai/pull/58
* Added monthly matrix testing technique by jernsting in https://github.com/wwu-mmll/photonai/pull/60
* Revert "Develop" due to squashing. by jernsting in https://github.com/wwu-mmll/photonai/pull/62
* Develop by jernsting in https://github.com/wwu-mmll/photonai/pull/63
* Added switch to create json output by jernsting in https://github.com/wwu-mmll/photonai/pull/65
* Fix/permutation importances by julblanke in https://github.com/wwu-mmll/photonai/pull/67
* add functionality to compare model and permutation feature importances by RLeenings in https://github.com/wwu-mmll/photonai/pull/72
* Feature/model zoo by RLeenings in https://github.com/wwu-mmll/photonai/pull/73
* Develop by RLeenings in https://github.com/wwu-mmll/photonai/pull/74
**Full Changelog**: https://github.com/wwu-mmll/photonai/compare/2.3.0...2.4.0