[Feature]: Add support for overhauled IndexSeries and Images type for NWB 2.5.0

[rly]

What would you like to see added to PyNWB?

NWB 2.5.0 which will be released soon made changes to IndexSeries and Images: https://github.com/NeurodataWithoutBorders/nwb-schema/pull/459

Is your feature request related to a problem?

No response

What solution would you like?

Corresponding changes need to be made in PyNWB before the schema submodule can be updated.

Do you have any interest in helping implement the feature?

Yes.

Code of Conduct

• [X] I agree to follow this project's Code of Conduct
• [X] Have you checked the Contributing document?
• [X] Have you ensured this change was not already requested?