feat: generic hash trait and benchmark for poseidon

[qalisander]

Follows #264

PR Checklist

• Tests
• Documentation
• Changelog

[netlify]

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.9%. Comparing base (da0249b) to head (902e9d0).

Additional details and impacted files

Files with missing lines	Coverage Δ
lib/crypto/src/bigint.rs	88.2% <100.0%> (+0.5%)	⬆️
lib/crypto/src/poseidon2/mod.rs	95.1% <100.0%> (+1.9%)	⬆️