Parser raises exception when encountering AEAD keys #79

NotImplementedError: <class 'pgpy.packet.types.Opaque'>
  File "celery/app/trace.py", line 760, in __protected_call__
    return self.run(*args, **kwargs)
  File "checks/tasks/appsecpriv.py", line 89, in web_appsecpriv
    return do_web_appsecpriv(af_ip_pairs, url, self, *args, **kwargs)
  File "checks/tasks/appsecpriv.py", line 245, in do_web_appsecpriv
    results[af_ip_pair[1]].update(securitytxt_check(af_ip_pair, url, task))
  File "checks/tasks/securitytxt.py", line 32, in securitytxt_check
    return _evaluate_securitytxt(result)
  File "checks/tasks/securitytxt.py", line 136, in _evaluate_securitytxt
    parser = sectxt.Parser(result.content, urls=result.found_url)
  File "__init__.py", line 93, in __init__
    self._process()
  File "__init__.py", line 100, in _process
    self._line_info.append(self._parse_line(line))
  File "__init__.py", line 165, in _parse_line
    pgpy.PGPMessage.from_blob(self._content_str)
  File "pgpy/types.py", line 195, in from_blob
    po = obj.parse(bytearray(blob, 'latin-1'))
  File "pgpy/pgp.py", line 1293, in parse
    self |= Packet(data)
  File "pgpy/pgp.py", line 1080, in __or__
    raise NotImplementedError(str(type(other)))