Extend support for Marching Cubes example to non-mpi configs and Windows builds

[kennyweiss]

In #1127. we observed that the Marching Cubes example segfaulted in our Windows configuration and disabled the tests there.

Note that our Windows config :

• does not yet support MPI for axom or its dependencies
• uses [email protected] instead of [email protected]. The latter was used to generate several of our test files in the axom_data repo, including the input to the MC example test
• does not generate python bindings for its conduit dependency. These would be required to run the scripts in axom/src/tools that were used to generate the MC example meshes

There are several possible causes to investigate:

• Does the MC example work in non-MPI configurations on Linux?
  • Specifically, in cases where both axom and conduit are configured without MPI
  • Should we add a non-MPI configuration to or linux CI?
• The test files were generated (on linux) using [email protected] and we're using [email protected] in our Windows config. Is the issue related to different versions of hdf5?