dev/release: Simplify cargo publish

[ajaypadwal73]

Summary

• add a cargo dependency graph checker and derive publish order from cargo metadata
• split random data generation, base test helpers, and raster testing helpers out of sedona-testing
• move raster sd_format handling into sedona-raster-functions and register its kernel from sedona
• relocate pointcloud integration tests to the top-level sedona crate

Fixes #702

Verification

• cargo fmt
• python3 dev/release/check-cargo-dependencies.py --print-publish-order
• cargo check/test sweeps run locally during review

[paleolimbot]

I will need a bit of time to look this over carefully, but in the meantime can you add a run of check-cargo-dependencies.py to one of the CI runs? Possibly the packaging run, or rust.yml with a new matrix name ("chekc-publish"?). Then when I review I'll know it works!

[ajaypadwal73]

@paleolimbot Done, added a check-publish matrix job in rust.yml that runs dev/release/check-cargo-dependencies.py --print-publish-order. The new check is passing on this PR.