Refactor/cube/vectorization

[louisfd]

Refactor for vectorization, supporting any u8 instead of enum

[codecov]

Codecov Report

Attention: Patch coverage is 72.50000% with 88 lines in your changes are missing coverage. Please review.

Project coverage is 86.39%. Comparing base (499ff0d) to head (02d8bf7).

Files	Patch %	Lines
crates/burn-cube/src/codegen/dialect/variable.rs	9.52%	19 Missing ⚠️
crates/burn-cube/src/language/element/uint.rs	7.14%	13 Missing ⚠️
crates/burn-cube/src/language/element/float.rs	14.28%	12 Missing ⚠️
crates/burn-cube/src/language/element/int.rs	14.28%	12 Missing ⚠️
crates/burn-cube/src/language/element/bool.rs	8.33%	11 Missing ⚠️
crates/burn-cube/tests/language/vectorization.rs	86.04%	6 Missing ⚠️
...s/burn-cube/src/codegen/dialect/procedure/index.rs	0.00%	4 Missing ⚠️
crates/burn-cube/src/language/element/numeric.rs	78.57%	3 Missing ⚠️
crates/burn-wgpu/src/compiler/wgsl/compiler.rs	62.50%	3 Missing ⚠️
crates/burn-cube-macros/src/analysis.rs	83.33%	1 Missing ⚠️
... and 4 more

Additional details and impacted files

@@           Coverage Diff            @@
##             main    #1781    +/-   ##
========================================
  Coverage   86.39%   86.39%            
========================================
  Files         736      737     +1     
  Lines       85757    85883   +126     
========================================
+ Hits        74089    74202   +113     
- Misses      11668    11681    +13     

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