* Simplify permission changing code for rabbitmq_user module
* Add check for multiple permission dicts for same host to rabbitmq_user module
* Add docstring for _get_permission method of rabbitmq_user
* Fix method that compares vhost permissions in rabbitmq_user
* Add tests for rabbitmq_user module
* Add helper function for simulating collections.Counter functionality
This is a helper for identifying whether the var is a sequence,
but is not of string-like type (optionally).
Co-authored-by: Toshio Kuratomi <toshio@fedoraproject.org>
Co-authored-by: Brian Coca <briancoca+dev@gmail.com>
Co-authored-by: Abhijeet Kasurde <akasurde@redhat.com>