When creating new NICs, intelligently create new networks

[glennmatthews]

• When creating new NICs in an OVF which has all NICs mapped to a single network, the new NICs should also map to this same network. (existing functionality, to be preserved)
• When creating new NICs in an OVF which has each NIC mapped to a different network, COT should create new networks to map the new NICs to, rather than mapping the new NICs to the same network as the last existing NIC (new functionality)
  • If the network names map obviously to the NIC name (GigabitEthernet3 <--> GigabitEthernet3) then the new network names should be similarly derived
  • If the network names are sequentially numbered in some fashion (Net1, Net2, Net3) then the new network names should be similarly derived.