* eos python3 changes
* changes to convert response from byte to text
* Add dellos6 python3 changes
Make `execute_command` arguments and its
return value complaint to PY3 changes
made in PR #24431
* Fix py3 prompt issue for invalid show command
* Fix review comments
* Add generic fix for error prompt in py3
* Fix CI issue
* Fix network_cli unit test failure
* Ansible 2.3 feature support for dellos6.
- With the new Ansible 2.3 infra changes, the dellos modules doesn't work
(the new infra changes are not backward compatible), so added the below
changes support it.
- Added the new terminal plugin for DellOS6
- Added the new action plugin for DellOS6
- Modified the modules to work with the new infra.
- with that it adds support for DellOS6 Persistent Connection support.
* Remove pep8 confirming files from dellos6.py and dellos6_config legacy-files