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 83.33333% with 117 lines in your changes missing coverage. Please review.
✅ Project coverage is 86.40%. Comparing base (110290e) to head (f69f1d8).

Files with missing lines	Patch %	Lines
...s_singlecell/tools/_rank_genes_groups/_wilcoxon.py	80.13%	91 Missing ⚠️
...apids_singlecell/tools/_rank_genes_groups/_core.py	87.05%	18 Missing ⚠️
...ds_singlecell/tools/_rank_genes_groups/__init__.py	95.12%	4 Missing ⚠️
...pids_singlecell/tools/_rank_genes_groups/_utils.py	82.60%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #636      +/-   ##
==========================================
- Coverage   88.04%   86.40%   -1.64%     
==========================================
  Files          96       96              
  Lines        7032     7604     +572     
==========================================
+ Hits         6191     6570     +379     
- Misses        841     1034     +193     

Files with missing lines	Coverage Δ
...ecell/tools/_rank_genes_groups/_wilcoxon_binned.py	80.38% <ø> (-0.37%)	⬇️
...ds_singlecell/tools/_rank_genes_groups/__init__.py	89.14% <95.12%> (+6.69%)	⬆️
...pids_singlecell/tools/_rank_genes_groups/_utils.py	60.63% <82.60%> (-25.28%)	⬇️
...apids_singlecell/tools/_rank_genes_groups/_core.py	74.85% <87.05%> (-16.64%)	⬇️
...s_singlecell/tools/_rank_genes_groups/_wilcoxon.py	82.08% <80.13%> (-15.54%)	⬇️

... and 2 files with indirect coverage changes