-Bringing add/delete/list of all external network devices under one unified API's (addNetworkDevice, deleteNetworkDevice, listNetworkDevice)
-Refactoring External network manager to work from both sets of API's add/delete/list NetworkDevice and add/delete/list External Firewall/LoadBalancer
- adding supprt for Netscaler VPX & MPX load blancers
- implemented for virtual networking
- works only with new fetched public IP, inline support is not added yet