[Feature]: Support pathlib.Path in ZarrIO

[CodyCBakerPhD]

What would you like to see added to HDMF-ZARR?

NWBZarrIO(path=pathlib.Path("some/path.nwb.zarr"), mode="r") fails, but NWBHDF5IO(path=pathlib.Path("some/path.nwb.hdf5"), mode="r") is fine

Is your feature request related to a problem?

No response

What solution would you like?

These should probably be made consistent

Do you have any interest in helping implement the feature?

No.

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