Currently only on batch creation (POST) for entities.

For all bulk operations, optional 'editgroup' query parameter overrides
individual editgroup parameters.

If autoaccept flag is set and editgroup is not, a new editgroup is
automatically created and overrides for all entities inserted. Note
that this is different behavior from the "use current or create new"
default behavior for regular creation.

Unfortunately, "true" and "false" are the only values acceptable for boolean
rust/openapi2 query parameters

THOUGHT: doing an UPDATE in a transaction is probably not expensive

Intent:
- check can_autoaccept flag on editor table

---------

Crude benchmarking...

cat /data/crossref/crossref-works.2018-01-21.badsample_5k.json | time ./fatcat_import.py import-crossref - /data/issn/20180216.ISSN-to-ISSN-L.txt

autoaccept: 7.47user 0.48system 0:30.64elapsed 25%CPU
master: 5.70user 0.34system 0:25.61elapsed 23%CPU
    batch creation: ~153ms+
    accept: ~5ms

uh...