Enhancement Proposal: Metadata Handling in Mapper Graph

[lucasimi]

Current Situation: The nodes of the mapper graph currently store the IDs of the points contained within them. However, this information is not always necessary.

Proposed Improvement:

• Optional Node Metadata: Allow flexibility in storing point IDs within nodes based on user needs.

• Optional Edge Metadata: Include additional metadata on edges, such as the cardinality of clusters' intersections or other metrics like the Jaccard index, to provide more insightful information. Consider also approximate solutions as trade offs (for example MinHash for Jaccard) if they are feasible.

[lucasimi]

Some possible node metadata could be also the cover_id and the cluster_id