* Tidy up docs for network 2.3 modules
* Use suboptions
* Correct indentation
* more tidyup
* bulk updates
* more tidyup
* Bulk changes
* nxos_mtu is dead
* revert
* NXOS_mtu is dead, also better layout
* rebase
* rebase
* 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