Whiteboard content type does not have V2 API parity

Issue Summary

This is reproducible on Data Center: (yes) / (no)

Steps to Reproduce

1. Attempt to use V1 API to retrieve certain content about a Confluence whiteboard
   1. Entity information, position in content tree, etc.
2. Try to do the same in V2

Expected Results

Whiteboards and associated information that is available via the V1 APIs should be accessible in the V2 APIs.

Actual Results

Whiteboards and associated information that is available via the V1 APIs are not accessible in the V2 APIs.

Workaround

There is no work around besides continuing to use the already deprecated V1 endpoints (which will only work for a period of time).