[WIP] Add CPU QuadratureSHAP prototype alongside TreeSHAP#12106

Draft

RAMitchell wants to merge 11 commits intodmlc:masterfrom

RAMitchell:shapley-value-algorithms

Commits on Mar 20, 2026

Add CUDA QuadratureSHAP prototype
RAMitchell
committed

Commits on Mar 30, 2026

Commits on Mar 31, 2026

Merge remote-tracking branch 'upstream/master' into shapley-value-algorithms
RAMitchell
committed

Commits on Apr 1, 2026