Non-recursive composite subsets#2140

Draft

jsub1 wants to merge 5 commits intoglue-viz:mainfrom

jsub1:TestNonrecursiveCompositeSubsets

Commits on May 5, 2020

Rewrite the composite subset to not use recursive function calls.
jsub1
committed

Commits on May 6, 2020

Added doc string to helper function
jsub1
committed

Commits on May 19, 2020

style fixes
jsub1
committed

Commits on May 27, 2020