[ChunkCodecCore] Faster byte shuffle

[nhz2]

Improved ShuffleCodec performance for element sizes 2, 3, 4, and 8.
On a CPU with AVX512 I am seeing around 8x faster byte shuffles.

[codecov]

Codecov Report

❌ Patch coverage is 84.21053% with 6 lines in your changes missing coverage. Please review.
✅ Project coverage is 88.30%. Comparing base (37cad2f) to head (8f32b03).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
ChunkCodecCore/src/shuffle.jl	84.21%	6 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #92      +/-   ##
==========================================
+ Coverage   85.11%   88.30%   +3.18%     
==========================================
  Files           4       42      +38     
  Lines         215     2120    +1905     
==========================================
+ Hits          183     1872    +1689     
- Misses         32      248     +216     

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