[pyclustering.cluster.dbscan][ccore.dbscan] Custom distance metric

[annoviko]

Introduction DBSCAN algorithm should be able to accept distance metric in the same way as K-Means, K-Medians, etc.

Description

• [ ] Introduce new optional argument metric (distance_metric type) under **kwargs for Python version of the library.
• [ ] Introduce new optional argument metric with new or updated constructor for C++ version of the library.
• [ ] Support from KD-tree is required to support that feature.
• [ ] Unit-tests for the custom distance matrix for Python pyclustering version.
• [ ] Unit-tests for the custom distance matrix for C++ pyclustering version.
• [ ] Documentation examples for C++ version.
• [ ] Documentation examples for Python version.

Links

• Proposal link: #582
• The issue depends on: #583