Optimize prefix sum computation in Lucene99HnswVectorsReader; fixes #15024#15027

yossev wants to merge 2 commits intoapache:mainapache/lucene:mainfrom

yossev:Optimize-prefix-sum-computation-in-Lucene99HnswVectorsReaderyossev/lucene:Optimize-prefix-sum-computation-in-Lucene99HnswVectorsReaderCopy head branch name to clipboard