Use direct IO when reading remote files through GDAL, Fix Big-Endian WKB reading

duckdb / duckdb_spatial

MIT License

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Closed Maxxen closed 8 months ago

Maxxen commented 8 months ago

This makes reading some formats through ST_Read remotely significantly faster, e.g. FlatGeoBuf.
Fixes reading linestrings/polygons in big-endian encoded WKB, closes #288
Also reenable explicit usage of /vsi/ prefixes that circumvent DuckDB's filesystem.
Also format code (which is why this diff is so huge)