Build API endpoints

[aaronjae22]

• export_account endpoint will fetch and return LOLA-compliant JSON-LD for an Actor
• trigger_account will accepts requests to copy account data
• report_activity will accepts and store interoperability test results
• deactivate_account can provide us with ways for deactivate or delete an account

[lisad]

The export_account endpoint may not be needed - but we do need an Actor endpoint that can be used for examining the actor as well as exporting.
We don't have to make deactivate_account available via an API, that can be a regular view if that's easier. Is this intended to be a way for staff to deactiviate account so it would be linked into the admin GUI?

I'm not sure about the intend for trigger_account and report_activity but wanted to discuss whether we should just do those as web forms (regular views, not API views) for ease of use