ENH: Add CoordTransform::transform_bounds()

[brendan-ward]

• I agree to follow the project's code of conduct.
• I added an entry to CHANGES.md if knowledge of this change could be valuable to users.

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This wraps OCTTransformBounds to provide CoordTransform::transform_bounds() for GDAL >= 3.4

Output values were verified manually using rasterio.

[brendan-ward]

I'd like to add an example to examples/spatial_reference.rs, but it is unclear how to do so for GDAL version-specific functions; I did not see other version-specific functionality in any of the examples. Is there a pattern for doing so, or it better to leave out such examples?

[lnicola]

A match might look nicer here (you can probably drop the trim), but it probably doesn't matter too much.

[brendan-ward]

This was copy-pasted from transform_coords for consistency; ideally both would get updated to be the same if match is more appropriate. I can update just this one here and the other in a follow up PR, or both in a follow up PR.

I'd probably also want to invert the logic a little bit so that only the error case is in the conditional and have a bare Ok:

if !ret_val {...handle error and return... }

Ok([out_xmin, out_ymin, out_xmax, out_ymax])

But didn't do so in this PR out of consistency.

[lnicola]

I can update just this one here and the other in a follow up PR, or both in a follow up PR.

Right, it's fine either way.

[lnicola]

Test failure seems unrelated:

---- config::tests::test_error_handler stdout ----
thread 'config::tests::test_error_handler' panicked at 'assertion failed: `(left == right)`
  left: `[(Failure, 42, "foo"), (Warning, 1, "bar"), (Warning, 1, "GPKG: bad application_id=0x00000000 on '/tmp/.tmp25HDOI.gpkg'")]`,
 right: `[(Failure, 42, "foo"), (Warning, 1, "bar")]`', src/config.rs:230:9

[lnicola]

You'll have to move the use here to avoid the warning. Or you might be able to skip the casts, like in transform_coords, I'm not sure.

[lnicola]

Still a formatting error (try cargo fmt).

[lnicola]

LGTM, I'll merge this tomorrow unless anyone else has objections.

[lnicola]

bors r+

[bors]

Build succeeded:

• ci ubuntu-lts
• ci ubuntu-lts (--all-features)
• clippy