Support CIFF readbacks

[JMMackenzie]

Currently, Anserini is used to generate CIFF files with the CIFF repo. A number of other systems like Terrier, PISA, JASSv2, OldDog can read/index CIFF files. However, Anserini doesn't currently support ingestion of CIFF files (at least, I don't think it does...)

Any possibility for supporting this in the near future? Or is it going to be difficult given the way Lucene deals with indexing?

[JMMackenzie]

@amallia You may be interested in this as well given our recent conversation.

[djoerd]

Is this on the radar?

[arjenpdevries]

I did ask @lintool about this. Does not have high priority but is on the wishlist I think.