Add example for Planetary Computer GeoParquet with PyArrow

[demoncoder-crypto]

Addresses #403

[demoncoder-crypto]

I have done the basic implementation if its correct I will fix everything iteratively. Thanks

[kylebarron]

This is an extremely verbose (AI-generated?) example where we really only need 10 lines of code, such as what we already have in the Zarr Planetary Computer example:

obstore/examples/zarr/main.py

Lines 11 to 24 in 50782ed

	# These first lines are specific to Zarr stored in the Microsoft Planetary
	# Computer. We use pystac-client to find the metadata for this specific Zarr
	# store.
	catalog = pystac_client.Client.open(
	"https://planetarycomputer.microsoft.com/api/stac/v1/",
	)
	collection = catalog.get_collection("daymet-daily-hi")
	asset = collection.assets["zarr-abfs"]
	# We construct an AzureStore because this Zarr dataset is stored in Azure
	# storage
	azure_store = AzureStore(
	credential_provider=PlanetaryComputerCredentialProvider.from_asset(asset),
	)

We already have an example for creating the Planetary Computer credential provider, so it would be much better to have a focused example on how to use pyarrow than a verbose example with all these print statements.

[kylebarron]

This doesn't exist.