Create import_record for each file imported

[arowla]

To get a better audit trail for data, create an import_record type to record the origin and status of all data, and link the import_record_id to each record. This might need to be an array on the other type, since records can come from more than one source (such as SOLs and MODs from FBO).

Fields to include:

• data_source
• name or description (optional -- this would be a human-readable version)
• filename
• retrieved_at (?)
• imported_at
• status (DOWNLOADED/IMPORTED/ERROR)
• frequency (? WEEKLY/NIGHTLY/other: this would help us tell at a glance whether files were missing)

[arowla]

This has been replaced with #183.