Add a global "interview viewer" method

[nonprofittechy]

Maybe:

assembly line:
  interview viewers:
    privilege_name: all

[mnewsted]

It would be helpful to our user support team if instead of selecting individual interviews, Answer Viewers could be granted the ability to view answers of all interviews. I'm not sure where the best place for them to find these answers would be. Maybe View answer files? @nonprofittechy let me know how I can help. Thanks!