feat: poseidon hash

[qalisander]

Resolves #264

PR Checklist

• Tests
• Documentation

[netlify]

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Name	Link
🔨 Latest commit	080c60f
🔍 Latest deploy log	https://app.netlify.com/sites/contracts-stylus/deploys/67305bfbb2d90c0008baead8

[codecov]

Codecov Report

Attention: Patch coverage is 94.91525% with 24 lines in your changes missing coverage. Please review.

Project coverage is 68.3%. Comparing base (10690f1) to head (080c60f).

Files with missing lines	Patch %	Lines
lib/crypto/src/poseidon2/mod.rs	94.5%	9 Missing ⚠️
lib/crypto/src/poseidon2/params.rs	0.0%	9 Missing ⚠️
lib/crypto/src/bigint.rs	96.5%	1 Missing ⚠️
lib/crypto/src/poseidon2/instance/babybear.rs	97.9%	1 Missing ⚠️
lib/crypto/src/poseidon2/instance/bn256.rs	97.6%	1 Missing ⚠️
lib/crypto/src/poseidon2/instance/goldilocks.rs	97.2%	1 Missing ⚠️
lib/crypto/src/poseidon2/instance/pallas.rs	97.6%	1 Missing ⚠️
lib/crypto/src/poseidon2/instance/vesta.rs	96.2%	1 Missing ⚠️

Additional details and impacted files

Files with missing lines	Coverage Δ
lib/crypto/src/bits.rs	100.0% <ø> (ø)
lib/crypto/src/field/fp.rs	47.1% <ø> (+2.6%)	⬆️
lib/crypto/src/poseidon2/instance/bls12.rs	100.0% <100.0%> (ø)
lib/crypto/src/bigint.rs	86.0% <96.5%> (+3.0%)	⬆️
lib/crypto/src/poseidon2/instance/babybear.rs	97.9% <97.9%> (ø)
lib/crypto/src/poseidon2/instance/bn256.rs	97.6% <97.6%> (ø)
lib/crypto/src/poseidon2/instance/goldilocks.rs	97.2% <97.2%> (ø)
lib/crypto/src/poseidon2/instance/pallas.rs	97.6% <97.6%> (ø)
lib/crypto/src/poseidon2/instance/vesta.rs	96.2% <96.2%> (ø)
lib/crypto/src/poseidon2/mod.rs	94.5% <94.5%> (ø)
... and 1 more