* Fix wsl lint errors in pkg package
* Fix wsl lint errors in most of internal package
Leave some sub-packages out that have higher churn at the moment.
* separate tenantID from m365 creds
Now that account.Account is in place, tenant id needs
to get removed from the credential set (it isn't actually
a secret) and placed in the account configuration instead.
* use config file for backup create
Now that corso stores its prior connection details in a config
file, that file should get used to retrieve storage details as needed.
credentials requriements surface in many places thorughout corso:
they can be sourced from many locations (envs, files, manually),
and used in many more (cli, repo, kopia). This usage could blossom
into all kinds of duplicate structs sharing similar info. The goal
of this change is to centralize where credentials are declared
and managed, and how they then cascade out to other packages.
