* Refactor common network shared and platform specific code into package (part-1)
As per proposal #76 refactor common network shared and platform specific
code into sub-package.
https://github.com/ansible/proposals/issues/76
* ansible.module_utils.network.common - command shared functions
* ansible.module_utils.network.{{ platform }} - where platform is platform specific shared functions
* Fix review comments
* Fix review comments
* Integrated publickey import and removal in iosxr_user
* Fixed linting issues
* Added version added for publickeyfile option
* Added quotation marks to version, oops
* Added some integration tests, added some checks to prevent aggregate users with public keys.
* Added some integration test files
* Created mutually exclusive public_key and public_key_contents versions of config
* Modified tests to use both methods and test more logins
* Added supports for aggregates
* Incorporated provider auth
* Fixed some lint issues
* Fixed a YAML lint issue
* Implemented catches for unconfigured providers.
* Fixed catches, hopefully
* Another test
* Added groups support so you can add users to multiple groups
* Trailing whitespace
* changed collection arg to argregate on 2.4 network modules
* replace users with aggregate in eos_user, junos_user, nxos_user
* added version_added to places where we replaced users with aggregate in the docs
* fix ios_static_route test
* update tests to reference aggregate instead of collection/users
Ganesh Nalawade
Sebastiaan van Doesselaar
Trishna Guha
David Newswanger
Toshio Kuratomi
Ricardo Carrillo Cruz