Netlist: Fixed windows build.

Windows std dev tools use GCC 4.6.3. This version seems to be to broken to deal with "new" in static initialization. GCC 4.6.4 compiles this on linux without causing any issues. Anyhow, working now.

Note: Please delete all netlist related object files prior to compiling:

rm -rf  obj/windowsd/mame/drivers/pong.o obj/windowsd/emu/machine/net* obj/windowsd/emu/netlist/