hdf5_ep

[svn-r8817] Purpose:
Bug Fix.

Description:
nh5zget_filter_info_c function was not declcared as H5_FCDLL, which is
required for fortran dll in Windows. _H5ZGET_FILTER_INFO_C is considered
as an unresolved external symbol by Fortran Compiler in Windows without
H5_FCDLL.

Solution:
Added H5_FCDLL for nh5zget_filter_info_c function.

Platforms tested:
DEC Fortran 6.0 in Windows XP.

Misc. update: