Gather feedback about solidity verifier output paths

[phated]

In #1992, we changed the file path locations output by the codegen-verifier command to be <root>/contract/<package_name>/plonk_vk.sol.

We are seeking feedback on this change. Does this layout make sense? Would something else be better?

[Savio-Sou]

cc @critesjosh @signorecello in case if you guys have any thoughts

[critesjosh]

I think this is a fine default location. It would be cool if it could be customized, so the user can specify the location with a --path flag or something.

[TomAFrench]

Why do we use the filename plonk_vk.sol? Would <root>/contract/<package_name>.sol be preferable?

[phated]

Why do we use the filename plonk_vk.sol? Would <root>/contract/<package_name>.sol be preferable?

Tom and I discussed this a bit over a call and we think the package name should be used for a directory because some verifiers can contain multiple files (such as https://github.com/AztecProtocol/barretenberg/tree/master/sol)

[TomAFrench]

That said, plonk_vk.sol is a pretty bad name and could be improved imo