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/stac-rs#462

Note

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