Suggest joins based on set overlaps when ingesting data

[davidlougheed]

• pre-specify for federation, so when dataset is pulled in federation service it knows what to join

[davidlougheed]

Possibly need to join 3+ data types together on a concept like sample_id - so a list rather than a 2-way hardcoded thing

[davidlougheed]

e.g. individual_to_sample_identifiers in biosample...