Feature Request: You should not need to be authenticated in order to run "types" for any iaas.

[genevieve]

the way it currently works

Given a user wants to see what types of resources can be deleted for their iaas
When they run leftovers --iaas one-of-them types without setting credentials
Then it fails trying to create an authenticated client for that iaas & does not list the types of resources that can be deleted.

the way it should work

Given a user wants to see what types of resources can be deleted for their iaas
When they run leftovers --iaas one-of-them types without setting credentials
Then it lists all the types of resources that can be deleted.