Exact-kmeans

- Fix infeasibility error because of tolerance problems
- Bound the branching_levels variable such that infeasibility errors cannot occur.
- Include config file inside package
- Change interface such that it is more similar to scikit-learn

**Full Changelog**: https://github.com/algo-hhu/exact-kmeans/compare/v0.1.1...v0.1.2

- Change the interface to be more similar to scikit-learn
- Add default value of config file as internal path to the package

**Full Changelog**: https://github.com/algo-hhu/exact-kmeans/compare/v0.1.0...v0.1.1

First release!

**Full Changelog**: https://github.com/algo-hhu/exact-kmeans/commits/v0.1.0