Use stacrs to read+write stac-geoparquet

[gadomski]

stacrs is a zero-dependency Python package that can read and write stac-geoparquet files. We could add stacrs as an optional dependency here to enable stac-geoparquet for pystac.

The option of adding stacrs to pystac was discussed in this issue: stac-utils/rustac#462

Note

I am the author of stacrs so I may have some bias.

[jsignell]

Does it only make sense to read-write ItemCollections as stac-geoparquet?

[gadomski]

I think so. Right now we're not sure exactly how to handle collections in the geoparquet metadata (stac-utils/rustac#428, I really should open up an issue on the spec for that one).

[jsignell]

Yeah I was just looking at that because I was thinking about #1254 and noticed that the geoparquet that comes out of stacrs right now does not have the collection-level fields at the top.