stac-geoparquet metadata updates

[TomAugspurger]

This updates the file metadata to

1. Add a version (currently 1.0)
2. Add stac:geoparquet_version
3. Deprecate stac:collection
4. Add a jsonschema file

cc @gadomski. Two questions:

1. Do we set the version to 1.0 or 1.1? feat: add stac:collections to spec #89 went with 1.1. I can split this in two if you want a 1.0 with stac:geoparquet_version only, cut a 1.0 release, and then follow up with a 1.1 release that has stac:collections? That would probably be best.
2. Does this match what you have for the rust library?

Supercedes #89

[gadomski]

I can split this in two if you want a 1.0 with stac:geoparquet_version only, cut a 1.0 release, and then follow up with a 1.1 release that has stac:collections? That would probably be best.

Makes sense to me.

Does this match what you have for the rust library?

Not at the moment, I have stac_geoparquet:version: https://github.com/stac-utils/rustac/blob/c8f20c3202e4e8c37e81d7c47644a272719d863b/crates/core/src/geoarrow/mod.rs#L20. But I can update the Rust side.

[TomAugspurger]

OK, I've reverted all the stac:collections (plural) changes for now and will do that separately. This should just have the changes to

1. Add jsonschema for the parquet file metadata
2. Add stac_geoparquet:version to the spec

[TomAugspurger]

Planning to merge this tonight. Follow up tasks

1. Cut a release (version TBD. More evidence for tying the spec to the (python) code repo being problematic.)
2. Make a PR adding collections and deprecating collection.