chore: test running benchmarks in CI

[TomAFrench]

Description

Problem*

Resolves

Summary*

This PR updates the set of programs for benchmarking to cover the main cryptographic primitives/black box functions.

I've also added an action to run the benchmarks and comment on PRs if the metric change. We can drop this again if it's not useful, etc.

Additional Context

Documentation*

Check one:

• [x ] No documentation needed.
• Documentation included in this PR.
• [Exceptional Case] Documentation to be submitted in a separate PR.

PR Checklist*

• I have tested the changes locally.
• I have formatted the changes with Prettier and/or cargo fmt on default settings.