This completes the refactor of the nxos modules to use the persistent
connection. It also updates all of the nxos modules to use the
new connection module and preserves use of nxapi as well.
* Fix imports on nxos_bgp* modules
* Fix imports on nxos_evpn* modules
* Cleanup issues for nxos_facts
* Shuffle imports for nxos_template
* Fix imports on nxos_ospf* modules
* Fix nxos_hsrp
As get_hsrp_groups_in_devices is not actually called anywhere, I presume this
change is reasonable.
* Fix imports on nxos_interface* modules
* Update nxos_static_route imports
* update nxos_vrf
* Update nxos_config imports