add auth.conf.d resources

[wolfaba]

Use Case

Some APT repos can require authentication.

Describe the Solution You Would Like

It would be great if the authentication could be managed in this module.

Describe Alternatives You've Considered

Without authentcation support in this module, user has to manage authentication (files) herself/himself.

Additional Context

PR #1087

It would be nice if it could be added in next release.

Thank you.

[bwitt]

Looks like #1087 was merged so this can be closed

[wolfaba]

the PR has been merged, thank you.