[QDP] refactor benchmark installation and usage

[ryankert01]

1. move benchmark to /qdp-python/benchmark
2. design a more robust pyproject.toml and make install benchmark related packages more robust.
3. document the usage.

discussion: #732 (comment)

[machichima]

I can help on this.
Also related: #732 (comment)

[ryankert01]

@machichima feel free to take it~

[ryankert01]

@machichima I think we can get this in this week!

[1-navneet]

I’d like to work on this.

[machichima]

Hi @1-navneet ,
I had a PR out, are you interested in review it?
Thanks!

[ryankert01]

#756