Support Transform-based sorting in ReplaceSortOrderAction

[CTTY]

Is your feature request related to a problem or challenge?

In Iceberg-java, users are allowed to pass in a Term that can do Transform-based sorting with specific transform functions like Bucket, Truncate, etc.: https://github.com/apache/iceberg/blob/6504fd809199cbc88ef890cc2f5b42a2cf00e102/core/src/main/java/org/apache/iceberg/BaseReplaceSortOrder.java#L70

Existing iceberg-rs only supports replacing sorting order using Transform::Identity/ column name directly. This support can be further extended.

Some related iceberg-rs structs:

• iceberg-rust/crates/iceberg/src/expr/term.rs

  Line 33 in 9f85f80

  pub type Term = Reference;

• iceberg-rust/crates/iceberg/src/spec/transform.rs

  Line 51 in cfe2a98

  pub enum Transform {

Describe the solution you'd like

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Willingness to contribute

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