* Refactoring to persistence connection BGP, factory, reload, save, showrun modules
* Refactoring methods from Util to module file
* Removing BGP Utility methods
* Adding to errors that need to be ignored
* CNOS Vlag module is refactored to use persistence connection instead of paramiko.
* Changing interface and port channel modules to persistent connection and adding UT for them.
* Fixing pep8 issues
* Removing trailing new line
* Removing trailing new line
* Removing trailing new line
* Correcting indentation mistake
* Update cnos_vlag.py
* Removing commented examples
They are commented because those configurations are not meant for L2 ports
* Changing Lenovo Inc to Lenovo and update License file to be consistent.
* Changing cnos_vlan from paramiko to persistence connection of Ansible. Also talking care of CLI changes in CNOS commands with backward compatibility.
* Fixing Validation issues
* Trailing lines removal
* Review comments of Gundalow are getting addressed. He mentioned only at one place for cnos.py. But I have covered the entire file.
* Changes to incorporate Review comments from Qalthos
* Removing configure terminal command from module code
* Aligning with change in run_cnos_commands method changes
* Editing cliconf for latest CNOS CLIs
* Modifying cnos-facts, cnos_command and cnos-config in line with the design followed in Ansible. Adding unit test cases for these modules. Added plugins to support them.
* Removing doc fragment conflicts with other modules
* Replacing show with display
