WEB3-79: Refactor of Governance Example for RISC Zero zkVM 1.0

[sashaaldrick]

This is a refactor of the original governance example located in release-0.20 here. This has been rewritten to match the foundry template layout, amongst many other features.

At a high level, this PR:

• upgrades governance example guest to zkVM 1.0
• deprecates Relay workflow and contracts
• updates publisher to handle deprecated relay workflows
• simplifies test logic for readability
• creates gas benchmarks from these tests

For a high level walkthrough, please see README.md, and to run tests locally with benchmarking, see instructions.md.

[sashaaldrick]

Lots of CI issues, I will take a look at a stab at fixing these later today/early this coming week

[sashaaldrick]

I'm working on refactoring the publisher.rs to work like the publisher in the erc20 counter, i.e using alloy directly instead of the TxSender implementation.