Add google_auth_oauthlib.flow.Flow.from_client_config support?

[ehenry09]

This is not an issue, but a suggestion. :D

Any chance you would be willing to make an update to support the google_auth_oauthlib.flow.Flow.from_client_config class method instead of having to be dependent on a file?

https://google-auth-oauthlib.readthedocs.io/en/latest/_modules/google_auth_oauthlib/flow.html#Flow.from_client_config

I am deploying in a container and would prefer not to write the file.

[wtberry]

I also would like a support for this :)