Changes: https://github.com/facebook/zstd/releases/tag/v1.5.7
Bump major as more than one public enum has grown additional members and
several structs and enums were renamed (different capitalization) and
compat defines were added.
tb@ did most of the work, and tested this update in an amd64 bulk.
Feedback and ok tb@
bket
2e8fbbf7b2