Added macros to visit-hdf5.h to re-map H5Fopen and H5Fclose functions
to Visit-specific equivalents.

Added implementations of VisIt-specific H5Fopen and H5Fclose functions
to visit-hdf5.h. There is #ifndef NDEBUG conditional logic to print
error message on cerr if an HDF5 plugin is found NOT to use H5F_CLOSE_SEMI
when opening a file.

There is UNconditional logic in these functions to print error message
on cerr if an HDF5 plugin is found to return error from H5Fclose. The
latter indicates a potentialy serious problem because the offending plugin
can then wind up preventing all other HDF5 plugins from opening the file.

Added #include <visit-hdf5.h> to all HDF5 plugins to ensure all plugins
will have their H5Fopen/H5Fclose methods re-mapped.

So far, only HDF5 plugin (that we also test) that appears to have problems
is Velodyne. I filed a ticket for it.

I discovered and removed some unnecessary #ifdef NDEBUG logic in Ensight
plugin.


git-svn-id: http://visit.ilight.com/svn/visit/trunk/src@16233 18c085ea-50e0-402c-830e-de6fd14e8384