release with more benchmarks

In this release, benchmark with in-memory hnsw, on-disk hnsw were added, including both 1M sift dataset and bigann 10 million dataset.

The second major release

In the major release, we add support for any types of vectors inputs, from u8 to u64, f32 to f64 et.al., those types are all supported by the distance trait.

First public release

This release is the first working release with a a lot of benchmarks against HNSW, the in memory version.