Support IEEEFP sample format

[sophie-h]

Example image: https://gitlab.gnome.org/-/project/27706/uploads/adb341752ba6fc0859eb550931bd227f/high-depth.tiff

Downstream issue: https://gitlab.gnome.org/GNOME/glycin/-/issues/86

[fintelia]

The tiff crate already supports this. There's an open PR against the main image crate that we should probably revisit and get over the finish line: image-rs/image#2251

[Shnatsel]

This was completed in image-rs/image#2534