Temporarily allow dead code

This will make the lints more useful while we are implementing the
Orchard protocol.

src/lib.rs

@@ -8,6 +8,8 @@
 //! address, which is also shielded).
 
 #![cfg_attr(docsrs, feature(doc_cfg))]
+// Temporary until we have more of the crate implemented.
+#![allow(dead_code)]
 // Catch documentation errors caused by code changes.
 #![deny(broken_intra_doc_links)]
 #![deny(missing_debug_implementations)]