vchoi_fork

[svn-r3860] 
Purpose:
    Windows port
Description:
    Multiple changes:
    *  Windows platforms require special compiler directives
       in order to create DLLs.
    *  In read/write subroutines data arrays were passed by descriptor.
       This worked on UNIX but did not work on Windows.
Solution:
    *  added compiler directives.
    *  read/write APIs have been changed. There is an additional
       parameter (array that contains the sizes of data buffer dimensions)
       and regular arrays are used instead of assumed-shaped arrays.
Platforms tested:
    * Currently this feature does not work. Common blocks are not exported correctly
      from one F90 module to another.
      I am checking this in so I can ask DEC for help.
    * For static library tests passed on Windows 98 ( except flush2_fortran)
      All tests passed on Linux, Solaris 2.7, O2K and T3E