nightly-2024-05-20: chore: add benchmarks for pedersen and schnorr verification (#5056)

# Description

## Problem\*

Resolves <!-- Link to GitHub Issue -->

## Summary\*

This PR adds benchmarks for pedersen commitments/hashes as well as
schnorr signature verification.

```
pedersen_commitment     time:   [542.17 µs 543.27 µs 544.40 µs]

pedersen_hash           time:   [850.69 µs 852.11 µs 853.68 µs]

schnorr_verify          time:   [1.5978 ms 1.5997 ms 1.6018 ms]
```

## Additional Context



## Documentation\*

Check one:
- [x] No documentation needed.
- [ ] Documentation included in this PR.
- [ ] **[For Experimental Features]** Documentation to be submitted in a
separate PR.

# PR Checklist\*

- [x] I have tested the changes locally.
- [x] I have formatted the changes with [Prettier](https://prettier.io/)
and/or `cargo fmt` on default settings.