Modify blake2s implementation for SIMD backend

[andrewmilson]

This change is 

[andrewmilson]

• Add benchmarks for SIMD fft #609
• Add benchmarks for SIMD quotients #608
• Add benchmarks for SIMD eval_at_point #607
• Add benchmarks for SIMD bit_reverse #606
• Implement QuotientOps for SIMD backend #605
• Implement AccumulationOps for SIMD backend #604
• Implement FriOps for SIMD backend #603
• Implement PolyOps for SIMD backend #599
• Modify FFT implementation for SIMD backend #596
• Add FFT implementation for SIMD backend #602
• Modify blake2s implementation for SIMD backend #595 👈
• Add blake2s implementation for SIMD backend #601
• Modify bit_reverse for SIMD backend #594
• Add bit_reverse for SIMD backend #600
• Implement FieldOps for SIMD backend #593
• Add SIMD backend arithmetic #592
• Enable 'rng.gen()'ing field types #591
• dev

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[codecov-commenter]

Codecov Report

Attention: Patch coverage is 92.98246% with 12 lines in your changes are missing coverage. Please review.

Project coverage is 91.09%. Comparing base (f2c90cd) to head (64fd01c).

Files	Patch %	Lines
crates/prover/src/core/backend/simd/blake2s.rs	92.98%	12 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##              dev     #595      +/-   ##
==========================================
+ Coverage   91.02%   91.09%   +0.06%     
==========================================
  Files          77       77              
  Lines        9807     9790      -17     
  Branches     9807     9790      -17     
==========================================
- Hits         8927     8918       -9     
+ Misses        811      803       -8     
  Partials       69       69              

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[spapinistarkware]

Reviewed 1 of 1 files at r3, all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @andrewmilson)