feat: integrating signature decoding api

[jpuri]

Explanation

Integrate signature decoding api in signature-controller. When a permit request is received this api is called and the result is asynchronously updated into signature request.

References

• Fixes https://github.com/MetaMask/MetaMask-planning/issues/3553

Changelog

@metamask/signature-controller

• Added: For Permit signatures invoke signature decoding api and update the signature with the response.

Checklist

• [x] I've updated the test suite for new or updated code as appropriate
• [x] I've updated documentation (JSDoc, Markdown, etc.) for new or updated code as appropriate
• [ ] I've highlighted breaking changes using the "BREAKING" category above as appropriate
• [ ] I've prepared draft pull requests for clients and consumer packages to resolve any breaking changes