Is your feature request related to a problem or challenge? Please describe what you are trying to do.
For #8373, we'll need support for writing the statistics! After #8374 we have a nice crate to put the utilities we need in, and the next step is to add bounding logic. This bounding logic accumulates the GeoStatistics we'll write (if requested) by iterating over elements (which are Wkb arrays).
Describe the solution you'd like
I'd like a bounds accumulator of some kind in the parquet-geospatial crate!
Describe alternatives you've considered
Putting this off for even longer than I already have, which does seem attractive.
Additional context