• Added new services from OpenAPI spec (#145, #159).
• Added consistent usage of the upload(path, IO) and download(path) -> IO across file-related operations (#148).
• Added Databricks Metadata Service credential provider (#139, #130).
• Added exposing runtime credential provider without changing user namespace (#140).
• Added a check for is not None for primitive fields in as_dict() (#147).
• Fixed bug related to boolean flags and convert True to true in query strings (#156).
• Fixed generation of external entities (#146).
• Make u2m authentication work with new CLI (#150).