perf: tighten entropy and LZ77 hot paths#714

hjanuschka wants to merge 2 commits into

libjxl:mainlibjxl/jxl-rs:mainfrom

hjanuschka:perf/pr08-entropy-lz77-hotpathhjanuschka/jxl-rs:perf/pr08-entropy-lz77-hotpathCopy head branch name to clipboard