feat: support write

[ZENOTME]

This PR:

1. support converting arrow struct to iceberg struct
   feat: support arrow_struct_to_iceberg_struct apache/iceberg-rust#731
2. support kinds of writer: fanout partition writer, sort_position_delete_writer, equality delta writer, precompute partition writer

• postition_delete_writer: feat: support position delete writer apache/iceberg-rust#704
• others I will send PR later.

4. fix FieldSummary generated from Manifest (upstream merged)
5. support serialize DataFile

• feat: support serialize/deserialize DataFile into avro bytes apache/iceberg-rust#797
  This PR is implemented in different ways, compared to Upstream. I'm not sure which direction of upstream go so we just pick one now following icelake now. (Serialize it into json). I think after upstream pr merged, we can change it to avro.

7. add delete file support for transaction

• feat: support to append delete type data file apache/iceberg-rust#798
  However, as feat: support to append delete type data file apache/iceberg-rust#798 (comment) says, we need more work to do this. For now it just compatible with icelake.

8. fix nullable field in eq delete writer

• fix: allow nullable field of equality delete writer apache/iceberg-rust#834

9. support to delete empty file in writer

• feat: support delete if empty for parquet writer apache/iceberg-rust#838

10. fix var len decimal of parquet stats

• fix: parse var len of decimal for parquet statistic apache/iceberg-rust#837

[xxchan]

What's the link to upstream PR and what's the status? 👀

[ZENOTME]

What's the link to upstream PR and what's the status? 👀

I have add more context about this.

[chenzl25]

LGTM. Since risingwavelabs/risingwave#19887 passes all iceberg tests. I think it is ok to move fast to migrate from icelake to iceberg-rust.