### Summary

Add type hints to `ansible.utils.display::Display`

### Issue Type

Feature Idea

### Component Name

lib/ansible/utils/display.py
salt = self._clean_salt(salt)
        rounds = self._clean_rounds(rounds)
        ident = self._clean_ident(ident)
        return self._hash(secret, salt=salt, salt_size=salt_size, rounds=rounds, ident=ident)
    def _clean_ident(self, ident):
        ret = None
        if not ident:
            if self.algorithm in self.algorithms:
                return self.algorithms.get(self.algorithm).implicit_ident
            return ret
        if self.algorithm == 'bcrypt':
            return ident
        return ret
    def _clean_salt(self, salt):
        if not salt:
            return None
        elif issubclass(self.crypt_algo.wrapped if isinstance(self.crypt_algo, PrefixWrapper) else self.crypt_algo, HasRawSalt):
            ret = to_bytes(salt, encoding='ascii', errors='strict')
        else:
            ret = to_text(salt, encoding='ascii', errors='strict')
        
        if self.algorithm == 'bcrypt':
            ret = bcrypt64.repair_unused(ret)
        return ret
    def _clean_rounds(self, rounds):