Log Message:
blosc: updated to 1.17.0

Release 1.17.0
LZ4 codec updated to 1.9.1.
Zstd codec updated to 1.4.1.
BloscLZ codec updated to 2.0.0. Although this should be fully backward
compatible, it contains important changes that affects mainly speed, but
also compression ratios. Feedback on how it behaves on your own data is
appreciated.