hdf5_ep

[svn-r9079] Purpose:
Feature

Description:
Changed TestParseCmdLine to accept an optional extra_parse()
function provided by indidivual test application.  Extra_parse()
can handle extra options special to that test application.

Updated testhdf5.c to use the new syntax of TestParseCmdLine().

Platforms tested:
On eirene both serial and parallel.