vtkHDFWriter for temporal PDS Collection

@lgivord Thanks for taking a look.
While the partitioned data set does write, it isn’t temporal even though “write all timesteps” is enabled.

As a comparison, the temporal polydata I have above does the following:

That said, I took a look at the temporal sphere in Paraview and I realized that while it has timesteps (unlike temporal pdsc), it only recorded the 0th one. So… I’m still confused how writing temporal data works.

I also found out that the vtkhdfreader doesn’t seem able to read the vtkhdf file created here: How to write time dependent data in VTKHDF files. I get this error:

So yeah, I guess I’m generally confused how to use the vtk hdf writer to encode the different points across timesteps in a mesh.