* Return correct version on installed VyOS (#39115)
* Return correct version on installed VyOS
Previously existing regexp will shows only "VyOS" without numeric output of router version.
For example: from "Version: VyOS 1.1.6" only VyOS will be written in ansible_net_version variable
For more informative output numeric value should be returned as well
* Fixed unittests
(cherry picked from commit 235b11f681)
* Added changelog
* move set_module_args to units.modules.utils
* unit tests: reuse set_module_args
* unit tests: mock exit/fail_json in module.utils.ModuleTestCase
* unit tests: use module.utils.ModuleTestCase
* unit tests: fix 'import shadowed by loop variable'
* updates all vyos modules to use socket connection
* adds vyos local action handler
* adds exec_command() to vyos
* updates vyos_config local action
* update unit test cases
* add base class for testing vyos modules
