Update example files for 1.1

[cholmes]

We should probably also provide a version of the included example.parquet in geoarrow encoding, as well as for the nz-building-outlines.parquet.

For geoarrow-encoding, given that this is geometry type specific, it might make sense to include example files in this repo for all types. Or update the geoarrow-data repo to also include Parquet versions of the files (currently I think it hosts only .arrow files?)

Originally posted by @jorisvandenbossche in #189 (comment)

[kylebarron]

I think it makes sense to include some (very small) data files in this repo, or in a specific geoparquet-data repo

[paleolimbot]

I agree that the canonical place for that test data should be something geoparquet-specific (although I also think it makes sense for geoarrow-data to distribute some files too since we're already distributing multiple formats).

[cholmes]

So we've got #204 in - is there more we want to do here? Get #134 in?

[jorisvandenbossche]

I think it would also be good to have the example.parquet file in a different encoding