feat(rust/sedona-functions): Add ST_GeomFromEWKB and support item crs inputs to ST_SetSRID

[paleolimbot]

This PR adds the function ST_GeomFromEWKB (which constructs an item_crs, as opposed to ST_GeomFromWKB, which constructs a regular geometry).

In the process of completing the roundtrip testing I also realized that ST_SetSRID didn't support item CRS inputs, so I just fixed that so I could complete the roundtrip test.

Closes #489
Closes #490

[Copilot]

Pull request overview

This PR adds support for reading EWKB (Extended Well-Known Binary) geometries, which include CRS information, and fixes ST_SetSRID to properly handle item_crs inputs for complete roundtrip testing.

Changes:

• Added ST_GeomFromEWKB function to construct geometries with CRS from EWKB format
• Updated ST_SetSRID and ST_SetCRS to support item_crs inputs by using parse_item_crs_arg helper functions
• Enhanced test coverage with roundtrip EWKB tests and parameterized tests for item_crs inputs

Reviewed changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
rust/sedona-functions/src/st_geomfromewkb.rs	New file implementing ST_GeomFromEWKB function to parse EWKB and extract CRS information
rust/sedona-functions/src/st_setsrid.rs	Updated to support item_crs inputs, refactored return type logic, and changed SRID validation from numeric to integer
rust/sedona-functions/src/register.rs	Registered new ST_GeomFromEWKB function and reordered function list alphabetically
rust/sedona-functions/src/lib.rs	Added module declaration for st_geomfromewkb
rust/sedona-expr/src/item_crs.rs	Made helper functions public to support item_crs parsing in other modules
python/sedonadb/tests/functions/test_wkb.py	Enhanced EWKB tests with roundtrip validation and updated test parameters
python/sedonadb/python/sedonadb/testing.py	Added val_or_null helper method to format binary values as SQL literals for different engines

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.