Unified raster creation options over CplStringList.

[metasim]

• 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.

---

This:

let options = [
    RasterCreationOption {
        key: "TILED",
        value: "YES",
    },
    RasterCreationOption {
        key: "BLOCKXSIZE",
        value: "16",
    },
    RasterCreationOption {
        key: "BLOCKYSIZE",
        value: "16",
    },
];

is now this:

let options = RasterCreationOptions::from_iter([
   "TILED=YES", "BLOCKXSIZE=16", "BLOCKYSIZE=16"
]);

[metasim]

Not 100% sure if

a) A type alias is a good idea
b) It should be in a separate file

Rationale:

a) If we ever needed to convert it into a newtype (to add creation-specific methods like validate, it's less breaking. Also, it's easy to get create options and other options confused, so this makes it a bit more clear.
b) Putting a single type in mod.rs feels unbalanced.

[lnicola]

a) If we ever needed to convert it into a newtype (to add creation-specific methods like validate, it's less breaking. Also, it's easy to get create options and other options confused, so this makes it a bit more clear.

We should probably re-export it from the parent module, so not breaking.

b) Putting a single type in mod.rs feels unbalanced.

There might be more 🙂.

[metasim]

We should probably re-export it from the parent module, so not breaking.

It is:

https://github.com/georust/gdal/pull/519/files#diff-eb172c9758a6ca0ee77f152d6a8c864de3a68ea11439bb26fa33ea60d3490155R78

[metasim]

Question: Should we also update DatasetOptions::open_options to do something similar?

gdal/src/options.rs

Lines 7 to 12 in 1b8ba56

	pub struct DatasetOptions<'a> {
	pub open_flags: GdalOpenFlags,
	pub allowed_drivers: Option<&'a [&'a str]>,
	pub open_options: Option<&'a [&'a str]>,
	pub sibling_files: Option<&'a [&'a str]>,
	}

[lnicola]

LGTM, but I secretly wish we just took &[&str] and built those under the scenes. 😅

[lnicola]

Nit:

/// use gdal::raster::{Buffer, RasterCreationOptions };