A small trait crate that defines a common abstraction over DSD audio sources
(DSF, DFF, WavPack, raw, etc.), so that container/metadata crates (e.g.
[`dsf-meta`](https://crates.io/crates/dsf-meta),
[`dff-meta`](https://crates.io/crates/dff-meta)) and readers (e.g.
[`dsd-reader`](https://crates.io/crates/dsd-reader)) can interoperate without
each reader needing format-specific knowledge of every container.
See [`DsdSource`] for the trait itself.