Postponned type annotations with inner-classes

[daveraja]

With Clorm v1.5.0 postponed type annotations don't work when you have inner classes. For example I think the following will break:

from __future__ import annotations

from clorm import Predicate

class Outer(Predicate):

       class Inner(Predicate):
              a: int

       x: Inner

[daveraja]

Fixed in version 1.5.1