Add script for turning lines of JSON-LD records into chunked datasets
Add script for turning lines of JSON-LD records into chunked datasets

This creates a bunch of "reasonably sized" JSON-LD dataset files with a
given count of named graphs.

It also fixes some things for BlazeGraph to be able to parse the data.

libris/librisxl,libris/librisxl,libris/librisxl