Wilcoxon refactor

[Intron7]

Implement a better GPU accelerated version of wilcoxon in rapids-singlecell inspired by the super fast illico verison.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 92.24704% with 59 lines in your changes missing coverage. Please review.
✅ Project coverage is 90.39%. Comparing base (554d891) to head (cff61e3).

Files with missing lines	Patch %	Lines
...s_singlecell/tools/_rank_genes_groups/_wilcoxon.py	92.60%	37 Missing ⚠️
...apids_singlecell/tools/_rank_genes_groups/_core.py	91.30%	12 Missing ⚠️
src/rapids_singlecell/_cuda/__init__.py	45.45%	6 Missing ⚠️
...pids_singlecell/tools/_rank_genes_groups/_utils.py	91.30%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #636      +/-   ##
==========================================
+ Coverage   90.28%   90.39%   +0.10%     
==========================================
  Files         104      104              
  Lines        8959     9507     +548     
==========================================
+ Hits         8089     8594     +505     
- Misses        870      913      +43     

Files with missing lines	Coverage Δ
...ds_singlecell/tools/_rank_genes_groups/__init__.py	98.83% <100.00%> (+16.38%)	⬆️
...ids_singlecell/tools/_rank_genes_groups/_logreg.py	86.84% <100.00%> (+2.97%)	⬆️
...ecell/tools/_rank_genes_groups/_wilcoxon_binned.py	99.10% <100.00%> (+8.49%)	⬆️
...pids_singlecell/tools/_rank_genes_groups/_utils.py	87.36% <91.30%> (+1.45%)	⬆️
src/rapids_singlecell/_cuda/__init__.py	65.00% <45.45%> (-15.00%)	⬇️
...apids_singlecell/tools/_rank_genes_groups/_core.py	87.89% <91.30%> (-3.84%)	⬇️
...s_singlecell/tools/_rank_genes_groups/_wilcoxon.py	92.91% <92.60%> (-4.71%)	⬇️

... and 1 file with indirect coverage changes