Feature-level lineage for ML Models

[Tonilyn]

Is your feature request related to a problem? Please describe.
Currently, it's impossible to keep track of data lineage for ml models because each feature can be based on different data sources (two or more tables, one or more columns).

Describe the solution you'd like
It would be great to have feature-level lineage for ml models similar to column-level lineage for tables. So user can track data source from columns to features.

Describe alternatives you've considered

Additional context
Add any other context or screenshots about the feature request here.