Zhiyue Li

In the realization of searchKnn in bruteforce.h, the query_data is not normalized even under "cosine" distance. This makes it return the wrong golden standard.

In the realization of searchStopConditionClosest (hnswlib/hnswalg.h), the returned results should be the **external label** (*labeltype*) of the searched vectors. However, the current implementation forgets to convert the **internal index** (*tableint*)...