Investigate notifying users about rejected ORCID claims

[kelockhart]

Maybe as a nightly task, for users with email addresses associated with their ADS accounts

[kelockhart]

Notes:

• Likely will need a rejected claims table; can be queried once per day and then kick off a task to email the users (without a table, it will be more complicated to email users only once per day, instead of once per rejected claim)
• While developing, start by implementing the table. Check output for a bit before enabling the email task
• To check: are all created claims in the claims table the result of accepted claims?