Implement optional JPEG2000 codec adapter (#40)

crates/libremetaverse-imaging/src/lib.rs

@@ -2,17 +2,16 @@
 
 extern crate self as libremetaverse_imaging;
 
-pub mod codec {
-    pub trait IImage {}
-    pub trait IImageCreator {}
-    pub struct ImageCreator<T>(pub std::marker::PhantomData<T>);
-    pub struct InterleavedImage;
-    pub trait BlkImgDataSrc {}
-}
+pub mod codec;
+
+#[cfg(feature = "jpeg2000")]
+mod jpeg2000;
 
 mod generated;
 mod managed_image;
 
 pub use generated::*;
+#[cfg(feature = "jpeg2000")]
+pub use jpeg2000::{J2kCodec, J2kCompression, J2kDecodeOptions, J2kEncodeOptions, J2kFormat};
 pub use libremetaverse_types::Error;
 pub use managed_image::{DEFAULT_MAX_ENCODED_BYTES, DEFAULT_MAX_PIXELS};