Use `Math::Prime::Util::znorder()` in `is_over_psp` for small prime factors.
Use `Math::Prime::Util::znorder()` in `is_over_psp` for small prime factors.

Provides a minor performance improvement in Number `is_over_psp(n)` when `n` has small prime factors.

trizen/sidef,trizen/sidef,trizen/sidef,trizen/sidef