Get the edited object like in Django LogEntry() model

[Stefan-ci]

I know it's possible to get the edited object in a python code but hard in templates. So having a method to query/get the edited object directly would be a benefit (easier).

# easy-audit/models.py -> CRUDEvent()
def get_edited_object(self):
    """ Return the edited object represented by this CRUD event (Like Django LogEntry does). """
    return self.content_type.get_object_for_this_type(pk=self.object_id)