Phoebus Mak

#### Reference Issues/PRs https://github.com/man-group/ArcticDB/issues/1200 #### What does this implement or fix? Add support for Azure AD default credential. Bind `DefaultAzureCredential` in azure C++ SDK to python layer for the support....

Promote internal API method `clear` to python API

3

Internal API method `lib.version_store.clear()` is frequently used. Given how frequently it's used, we should promote it to a top-level method. The method deletes everything inside a library.

https://docs.getmoto.org/en/latest/docs/services/sts.html `moto` has incomplete support for sts with role assuming. Although it doesn't verify the existence of the role but could still be valuable for testing. Note: it may not...