hdf5_ep

[svn-r9747] Purpose:
Bug fix.

Description:
When building h5dumpgentest.c with Visual C++ 6.0, I got the following warning message:
h5dumpgentest.c(4528) : warning C4013: 'h5tools_can_encode' undefined; assuming extern returning int

Solution:
Add the header file h5tools.h into h5dumpgentest.c.

Platforms tested:
Heping (Linux)
Visual C++ 6.0 on Windows XP/2000.
.NET on Windows XP.
(Tested with SZIP-with-encoder and SZIP-without-encoder).

Misc. update: