0.49.0

Release notes

Enhancements

• Added encode_records to EncodeRecord and AsyncEncodeRecord traits for more
  efficient batch encoding
• Added encode_record_refs to EncodeRecordRef and AsyncEncodeRecordRef traits with
  more efficient vectored I/O implementation for DBN
• Added support for decompressing Zstd in the Python DBNDecoder and new optional
  compression parameter

Breaking changes

• Moved encode_records method from the EncodeDbn trait to EncodeRecord