feat(raster): add RS_Contains, RS_Intersects, RS_Within UDFs

[Kontinuation]

Summary

• Add RS_Contains, RS_Intersects, and RS_Within spatial predicate UDFs to sedona-raster-functions
• Supports raster-geometry and raster-raster spatial relationship tests with CRS-aware coordinate transformation
• Adds crs_utils module for CRS resolution and coordinate transformation helpers
• Extends executor.rs with execute_raster_wkb_crs_void (raster+geometry iteration) and execute_raster_raster_void (two-raster iteration) patterns
• Makes sedona-proj::st_transform module and with_global_proj_engine function public for cross-crate CRS transformation
• Includes unit tests and benchmark entries in native-raster-functions.rs