Create basic pyTorch notebooks example

[clausmichele]

[clausmichele]

BIDS: example notebook based on Planetary Computer converted to EOPF Zarr (check)

[konstntokas]

Here is one AI application from the BiDS hackathon: https://github.com/EOPF-Sample-Service/EOPF-Zarr-BIDS25/blob/main/hackathon/thread-5/grasslands-example.ipynb