option to enable caldav and carddav scope

[fishman]

I know that the tool is called mailctl, but since I already use it for oauth I would love to be able to use it for vdirsyncer as well.

Is there any chance you could add an option to enable the following scopes as well:

"https://www.googleapis.com/auth/calendar", "https://www.googleapis.com/auth/carddav"

[fishman]

Guess I should have checked the services.yaml