Changelog: optional xxhash faster hasing function support for metadata in diff lots of optimizations and fixes License file changed due to copyright year change: -Copyright (c) 2015-2021, CESNET +Copyright (c) 2015-2024, CESNET Signed-off-by: Mattias Walström <lazzer@gmail.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>