feat!: Add option to specify output directory on codegen cmd and use generic names

[nicolasgarcia214]

Description

This PR adds the option to specify an output directory for the generated contracts of the codegen-verifier command. Also changes the fixed name plonk_vk.sol to <PACKAGE_NAME>_verifier.sol.

Problem

Closes #4476 and #4477

Documentation

Check one:

• 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.

[github-actions]

Thank you for your contribution to the Noir language.

Please do not force push to this branch after the Noir team have started review of this PR. Doing so will only delay us merging your PR as we will need to start the review process from scratch.

Thanks for your understanding.

[TomAFrench]

Hey, I'm closing this PR as we've removed the codegen-verifier feature and instead this should be done through barretenberg directly.