feat(parquet): add content defined chunking for arrow writer

[kszucs]

Which issue does this PR close?

• Closes #NNN.

Rationale for this change

Rust implementation of apache/arrow#45360

Traditional Parquet writing splits data pages at fixed sizes, so a single inserted or deleted row causes all subsequent pages to shift — resulting in nearly every byte being re-uploaded to content-addressable storage (CAS) systems. CDC determines page boundaries via a rolling gearhash over column values, so unchanged data produces identical pages across different writes enabling storage cost reductions and faster upload times.

See more details in https://huggingface.co/blog/parquet-cdc

The original C++ implementation apache/arrow#45360

Evaluation tool https://github.com/huggingface/dataset-dedupe-estimator where I already integrated this PR to verify that deduplication effectiveness is on par with parquet-cpp (lower is better):

What changes are included in this PR?

• Content-defined chunker at parquet/src/column/chunker/
• Arrow writer integration integrated in ArrowColumnWriter
• Writer properties via CdcOptions struct (min_chunk_size, max_chunk_size, norm_level)
• ColumnDescriptor: added repeated_ancestor_def_level field to for nested field values iteration

Are these changes tested?

Yes — unit tests are located in cdc.rs and ported from the C++ implementation.

Are there any user-facing changes?

New experimental API, disabled by default — no behavior change for existing code:

// Simple toggle (256 KiB min, 1 MiB max, norm_level 0)
let props = WriterProperties::builder()
    .set_content_defined_chunking(true)
    .build();

// Excpliti CDC parameters
let props = WriterProperties::builder()
    .set_cdc_options(CdcOptions { min_chunk_size: 128 * 1024, max_chunk_size: 512 * 1024, norm_level: 1 })
    .build();