admin role can now edit tips
Finished Authorization for Admins and CaseManagers
updated tests to test authorization for viewing and downloading data for doctors, case managers and admin (left is super admin with rails_admin gem). In addition, these updates in authorization allow for the viewing of data by admin for any patient [Finishes #72918420] and download their data via CSV [Finishes: #72918454] and for case managers to download and view data for their patients [Finishes: #72918444] for doctors to view their patients. test exist for all.  I would love if someone could look at my CanCan code in ability and the controllers - tips_controller.rb and participants_controller.rb in particular. Thanks