Tell the user whether they are indigent or not

No confirmation screen after making user fill in affidavit of indigency (also doesn't start the supplement? might not be necessary early in the interview).


```yaml
  if wants_fee_waiver:
    is_indigent
    set_fee_waiver_defaults
```

MotionToStayEviction uses the `ask_affidavit_questions` variable to ask the questions and show the follow up screens.