- Add a test suite for ws2_32.dll

- Add a test suite for ws2_32.dll
  It currently tests the features I needed to adjust/implement when fixing the wininet problem.
  ReactOS currently passes all tests, but fails one if you launch the test app for the second time quickly after the first time (timing problem in the network code?).
- Fix the behaviour on an ioctlsocket FIONREAD call: The output buffer is not touched, when we have no socket, but when we have no connection, it is set to 0.
- Forward the socket call to WSASocketW instead of WSASocketA, minimal performance improvement

svn path=/trunk/; revision=33824