E1.37-2 Network configuration dummy responder

Still a work in progress. The fake list_interface stuff etc segfaults.All the real data works for gets (apart from DHCP status for now). Apart from the interface stuff, all the other fake stuff works for gets. When I get the interface stuff sorted, I'll look at starting to add set support. I'll also possibly implement DHCP detection for one of the popular DHCP clients.