feat(traverse): Introduce new accessor methods (#152)

pallas-codec/src/utils.rs

@@ -273,7 +273,7 @@ impl<T> Deref for CborWrap<T> {
     }
 }
 
-#[derive(Debug, Clone)]
+#[derive(Debug, Clone, PartialEq, PartialOrd)]
 pub struct TagWrap<I, const T: u64>(I);
 
 impl<I, const T: u64> TagWrap<I, T> {
@@ -309,6 +309,14 @@ where
     }
 }
 
+impl<I, const T: u64> Deref for TagWrap<I, T> {
+    type Target = I;
+
+    fn deref(&self) -> &Self::Target {
+        &self.0
+    }
+}
+
 /// An empty map
 ///
 /// don't ask me why, that's what the CDDL asks for.