Add HDF5 option to configure script and add environment variables for configuring HDF5

[mcmehrtens]

Summary

• Resolves Extending HDF5 Support #5391
• Adds an --hdf5 flag to the configure script to allow configuring AMReX with HDF5 support
• Adds two new environment variables:
  • HDF5_ALIGNMENT_SIZE which is passed to H5Pset_alignment()
  • HDF5_BLOCK_SIZE which is passed to H5Pset_meta_block_size()

Additional background

• The two new environment variables mirror how the other HDF5 configuration option is currently set.
• If we want to move forward with these changes, I will add appropriate documentation before taking the PR out of draft.

Checklist

The proposed changes:

• fix a bug or incorrect behavior in AMReX
• add new capabilities to AMReX
• changes answers in the test suite to more than roundoff level
• are likely to significantly affect the results of downstream AMReX users
• include documentation in the code and/or rst files, if appropriate

[mcmehrtens]

fixed whitespace & rebased off development

[WeiqunZhang]

LGTM. The Windows CI issues are not due to this PR. So is this still a work in progress?

[mcmehrtens]

LGTM. The Windows CI issues are not due to this PR. So is this still a work in progress?

Sounds good. I need to update the documentation and then I will take it out of draft and request review. I didn't want to add documentation until it had your preliminary review of the PR/issue.

[mcmehrtens]

@WeiqunZhang ready for your final review after CI tests run