Feature Request: Expand Help Center API to include Article Verification

Feature Request Summary: 

Help Center should have an API endpoint for Article Verification, or attributes within the existing Article endpoint for verification.

Description/Use Cases: 

Verification is a great concept but is rather limited in its implementation through Help Center. Exposing this process via API would allow for more robust 3rd-party tools to be built that could manage Article Verification more effectively.

Business impact of limitation or missing feature:

Our team uses outside tools, such as Google Sheets, to track verifications. It is cumbersome, but allows us to have the right controls in place for how verifications should flow for our team. Having the ability to do this right through Zendesk would allow us more flexibility to build tools to handle it. Otherwise, we'll keep outsourcing the work.