face_iter/face_generator of polyhedra: Specify algorithm instead of dual=False/True #33646
Description
In addition we add a function alias: face_generator for CombinatorialPolyhedron to make it consistent with Polyhedron_base.
We deprecate the keyword dual.
CC: @tscrim @yuan-zhou
Component: geometry
Author: Jonathan Kliem
Branch/Commit: ed15041
Reviewer: Travis Scrimshaw, Yuan Zhou
Issue created by migration from https://trac.sagemath.org/ticket/33646