Request: Expose `image` package as a public export.

[NfNitLoop]

Since Identicon.image() returns an ImageBuffer, and you have to have the image package to convert that into a useable file, it's really part of your public interface. It'd be nice if identicon would export it with a pub use image so that users don't have to manage their own dependency on the library.

[NfNitLoop]

Alternatively, if most users are just exporting PNGs, then this is likely enough to allow them not to have to depend on image themselves:

NfNitLoop@b491c1f