InkProject not exported from ink_metadata

[0xLucca]

/~https://github.com/paritytech/cargo-contract/blob/bcc1c8cc5a748b3f421f40b9d9a9d7d355c8acb2/crates/transcode/src/lib.rs#L177

In the transcode crate, the InkProject type is currently unexported, making it inaccessible to users. It would be beneficial to expose the ink_metadata module entirely, allowing users to include it in their projects without the need to explicitly add the ink_metadata crate solely for accessing certain types.

We propose updating the lib.rs file as follows:

// Other imports
pub use ink_metadata;
...

This change would enable users to access the necessary types conveniently.