refactor cloud network factory from core

Author: nasark

spec/factories/cloud_network.rb

@@ -0,0 +1,8 @@
+FactoryBot.define do
+  factory :cloud_network_vmware_vdc,
+          :class  => "ManageIQ::Providers::Vmware::NetworkManager::CloudNetwork::OrgVdcNet",
+          :parent => :cloud_network
+  factory :cloud_network_vmware_vapp,
+          :class  => "ManageIQ::Providers::Vmware::NetworkManager::CloudNetwork::VappNet",
+          :parent => :cloud_network
+end