Refactor code to allow for the addition of a command to create config file

[joebonneau]

For the user, it would be really nice to be able to set up a config file that has the necessary information (client id, client secret, etc.). This is easy to implement, but the issue comes with trying to create a command to generate the config file. Currently, the auth logic is executed directly in the "main" group call and there is no way to circumvent that happening. Because the config command shouldn't care about the auth, we can't implement.

See here and here for implementation ideas - basically need to chain together commands and create a decorator to apply to commands where we don't want this behavior.