Code doesn't compile with only png and jpeg enabled

[emoon]

Hi,

If I use the following

zune-image = { version = "0.4", default-features = false, features = ["jpeg", "png"] }

The code doesn't compile with the following error

  --> /home/emoon/.cargo/registry/src/index.crates.io-6f17d22bba15001f/zune-image-0.4.15/src/codecs/png.rs:13:5
   |
13 | use exif::experimental::Writer;
   |     ^^^^ use of undeclared crate or module `exif`

error[E0282]: type annotations needed for `std::io::Cursor<Vec<_>>`
   --> /home/emoon/.cargo/registry/src/index.crates.io-6f17d22bba15001f/zune-image-0.4.15/src/codecs/png.rs:176:13
    |
176 |         let mut buf = std::io::Cursor::new(vec![]);
    |             ^^^^^^^
    |
help: consider giving `buf` an explicit type, where the placeholders `_` are specified
    |
176 |         let mut buf: std::io::Cursor<Vec<_>> = std::io::Cursor::new(vec![]);
    |                    +++++++++++++++++++++++++

If I enable the default-features it works.

[etemesi254]

duplicate of

#164

fixed, and tried adding the ci check in https://github.com/etemesi254/zune-image/blob/dev/.github/workflows/image_features.yml, but I think it's not yet running

I couldn't push a release because I have been overhauling the read and write api to support arbitrary streams for a 0.5 and I can spend my time on as much sadly.

Nb, just add metadata feature no need to enable all features

[emoon]

Thanks!