``max_pauli_size=0`` meaning in PPM/PPR passes should truly mean `0`, whereas it means "infinity" currently

[isaacdevlugt]

It looks like some of the PPR/ PPM transforms are using max_pauli_size=0 to mean "max pauli size of infinity". Suggest to make max_pauli_size=-1 for that instead. 0 should mean a max pauli size of 0—nothing.