Expand the hard-coded WITNESS lock order to include the following relationships:
Expand the hard-coded WITNESS lock order to include the following
relationships:

Sockets:    filedesc->accept->sellck
Routing:    radix node head->rtentry->ifaddr
UDP:        udp->udpinp
TCP:        tcp->tcpinp
SLIP:       slip_mtx->slip sc_mtx

Drop in a place holder section for UNIX domain sockets.  Various
sections to be expanded over the next few days.

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase