Create an autotuner tool on top of benchmark

## Is your feature request related to a problem? Please describe.
the repo contains a comprehensive benchmark framework that takes configuration as inputs and measures throughput (qps), latency etc. We want a tool that builds on this to sweep over a subset of parameters, for example R (graph degree), l_build, l_search, and quantization bytes where applicable, and identify the best configuration.

## Describe the solution you'd like
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## Describe alternatives you've considered
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## Provide references (if applicable)
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## Additional context
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