Rename CPU* structs to Cpu* to conform to Rust's naming convention

[andrewmilson]

This change is 

[andrewmilson]

• Add eval order and interpolate to SecureEvaluation #794
• Add MLE eval constraints #742
• Add eq evals constraints #741
• Add benchmarks for GKR lookups #673
• Implement LogupOps for SIMD backend #641
• Implement GrandProductOps for SIMD backend #640
• Implement GkrOps for SIMD backend #630
• Implement MleOps for SIMD backend #629
• Add GKR implementation of Logup lookups #623
• Add GKR implementation of Grand Product lookups #620
• Implement GkrOps for CPU backend #621
• Add batch GKR prover and verifier #581
• Rename CPU* structs to Cpu* to conform to Rust's naming convention #617 👈
• Remove AVX backend #616
• Convert wide_fibbonacci AVX backend example to SIMD backend #615
• Update CI to test Wasm simd128, avx2 and aarch64 neon #614
• Fix CirclePointIndex bug in debug mode for 32-bit archs #613
• Change opt-level in benchmarks script #612
• Add benchmarks for SIMD m31 #611
• Add benchmarks for SIMD merkle #610
• dev

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[codecov-commenter]

Codecov Report

Attention: Patch coverage is 94.00000% with 6 lines in your changes are missing coverage. Please review.

Project coverage is 92.64%. Comparing base (d4372f9) to head (1f8d0e0).

Files	Patch %	Lines
crates/prover/src/core/poly/circle/secure_poly.rs	0.00%	3 Missing ⚠️
crates/prover/src/core/backend/simd/circle.rs	0.00%	1 Missing ⚠️
crates/prover/src/core/fields/secure_column.rs	50.00%	1 Missing ⚠️
crates/prover/src/core/prover/mod.rs	85.71%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##              dev     #617   +/-   ##
=======================================
  Coverage   92.64%   92.64%           
=======================================
  Files          69       69           
  Lines        8995     8995           
  Branches     8995     8995           
=======================================
  Hits         8333     8333           
  Misses        590      590           
  Partials       72       72           

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[shaharsamocha7]

Why clippy didn't yell about that?
Do we want to assert this naming convention?

Reviewed 37 of 37 files at r1, all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @andrewmilson)

[shaharsamocha7]

Reviewed 2 of 2 files at r2, all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @andrewmilson)

[shaharsamocha7]

Reviewed 15 of 15 files at r3, all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @andrewmilson)