chore: add adversarial tests for permission decoding. Add additional validation for token permission types.

[jeffsmale90]

Explanation

It's critical that the GatorPermissionController's Permission decoding logic is strict, and will not decode EIP-712 payload to a permission unless the payload exactly meets the expectations of that permission.

This PR adds adversarial tests that attempt to break the permission decoding, and adds additional validation for token permission types, enforcing relationships between token amounts, and timestamps.

References

Checklist

• I've updated the test suite for new or updated code as appropriate
• I've updated documentation (JSDoc, Markdown, etc.) for new or updated code as appropriate
• I've communicated my changes to consumers by updating changelogs for packages I've changed
• I've introduced breaking changes in this PR and have prepared draft pull requests for clients and consumer packages to resolve them