Changelog:
===========
-OAuth2Session now correctly uses the self.verify value if verify is not overridden in fetch_token and refresh_token.
-OAuth2Session constructor now uses its client.scope when a client is provided and scope is not overridden.
-Add refresh_token_request and access_token_request compliance hooks
-Add PKCE support and Auth0 example
-Add support for Python 3.8-3.12
-Remove support of Python 2.x, <3.7
-Migrated to Github Action
-Updated dependencies
-Cleanup some docs and examples
Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>
