Updates Transitive closure algorithm.#1509

Draft

chaluli wants to merge 3 commits intocedar-policy:mainfrom

chaluli:transitive_closure_improvements

Commits on Feb 27, 2025

Updates transitive closure algorithm and adds repair_tc to update an existing transitive closure computation for only a sub-set of the overall nodes.
Charlie Murphy
committed

Commits on Feb 28, 2025

Fixes panic safety check.
Charlie Murphy
committed

Commits on Mar 3, 2025

Adds a new cyclic_tc function to comptue the exact transitive closure of a graph with cycles. More work needed to incorporate it in appropriate places.
Charlie Murphy
committed