freedce-win32 - winsock joy

[Luke Kenneth Casson Leighton]

progress being made.  am about 10-15% the way through a compile, having
previously got dcethreads to use pthread-win32 by judicious ripping out
of large amounts of code.  fortunately, elrond has already win32'd
tng, so there is stacks of code in tng's lib/util_sock.c to rip off :)