hdf5_ep

[svn-r4043] 
Purpose:
   1. update windows H5pubconf.h and zconf.h
      still more work to be done to make sure that windows catches up
      with UNIX platforms.
   2. 1) bug fixings due to the deletion of windows.h
      For several .c files under src and test, windows.h still needs to be included.
      2) also IO.h and direct.h are needed for several files.
      3) mkdir is _mkdir on windows without the second argument.
      4) winsock.h needed for iopipe.c, winsock2.h needed for H5detect.c

   3. add giftoh5 and h5togif in all_withhdf4.zip; update project settings.
Description:
   see the above
Solution:
   see the above
Platforms tested:
    windows 2000