Function decompress 

pub fn decompress(
    input: &[u8],
    config: &EngineConfig,
    cancel: &AtomicBool,
) -> Result<Vec<u8>>

Decompress a GPU-format archive back to the original bytes.

Errors

• CrushError::InvalidFormat if the archive header/footer is invalid.
• CrushError::Cancelled if cancel is set during processing.