Adds immuneML/: AIRR Rearrangement repertoires for all 2,352 specimens, immuneML metadata CSVs, fixed fold splits and example specs for the 11 benchmark tasks, MANIFEST.tsv and export_report.json (built from 165c551 with utils/immuneml_export.py and utils/immuneml_tasks.py). README.md, DATASHEET.md and croissant.json describe the export.
