clean up of wallace tree generation in booth multiplier#4421

Draft

andyfox-rushc wants to merge 4 commits intoYosysHQ:mainfrom andyfox-rushc:master

+403-167

Commits on Apr 4, 2024

parallel reduction in booth.cc
andyfox-rushc
committed

Commits on May 28, 2024

Commits on Oct 20, 2024

Parallel wallace tree
andyfox-rushc
committed