Multi account support

[dtpryce]

Is your feature request related to a problem? Please describe. We want to be able to manage vaults across multiple account and account types. Right now once you have logged in with one you can't see across the authentication boundary with service account (token based) authentication taking precedence.

Describe the solution you'd like A clear approach to setting up individual and many account and then how to query all or specific accounts.

Describe alternatives you've considered Right now it would be on users to define their own workflows with logging in, then out.

Additional context Would need to make sure all auth methods have signin and signout methods and then masking of unsupported commands so that we didn't get errors when making the cli calls.