Handle optional user fields gracefully

[tehkillerbee]

Optional/removed fields often breaks tidalapi. We should handle optional/unused fields gracefully

See this issue for more details:
#147

[2e0byo]

FWIW I think we should only get the fields we actually use, and then just provide the raw response object to anyone who wants it. Or if we still want to parse, something like:

for k, v in response.items():
   if not hasattr(self, k):
       setattr(self, k, v)

I also suspect these fields are gone for good: not sure what GDPR would say of shipping the user's gender to every device just in order to play music. TBH I was quite surprised to see that field even existed.