Sockets: Initial steps to adde a socket interface to the networking. Each...

Sockets:  Initial steps to adde a socket interface to the networking.  Each address family will have an interface that describes how to perform socket operations on that address family.  Currently only a couple of methods are defined in the table as a proof of concept.  More to come.  Currently there are only tables for the INET/INET6 family, the Unix LOCAL family, and the raw PACKET family.  Hopefully there will be AF_IEEE802154 and AF_BLUETOOTH comming down the pike.