schemas/vegbien.sql: Added datasource_id to all tables with a sourceaccessioncode (and corresponding *_unique_datasource constraint on these columns) so they can be directly looked up using just the input table's own fkey to parent. This will enable loading hierarchical (plots) data without "breadcrumbs", a huge benefit! Also added sourceaccessioncode wherever there was a datasource_id, to standardize on these names as being the columns that link directly to the input table rows.
schemas/vegbien.sql: Added datasource_id to all tables with a sourceaccessioncode (and corresponding *_unique_datasource constraint on these columns) so they can be directly looked up using just the input table's own fkey to parent. This will enable loading hierarchical (plots) data without "breadcrumbs", a huge benefit! Also added sourceaccessioncode wherever there was a datasource_id, to standardize on these names as being the columns that link directly to the input table rows.