Andrey Esmeneev

#620: Make Lineage reactive

4

**What changes did you make?** (Give an overview) Closes #620 Refactored `LineageRepository`, `GroupEntityRelationRepository` and `LineageService` to reactive approach. Tests and refactoring of `LineageMapper` still pending. **Is there anything you'd like...

**Describe the bug** (A clear and concise description of what the bug is.) Endpoint for DEG lineage returns 500 error if the lineage is not empty. This happens for following...

Thanks for such an awesome library! Is there any documentation describing the resulting model and all of its methods and properties?