modified multipath to derivative(PartialEq...)

Co-authored-by: Pratyush Mishra <[email protected]>

src/merkle_tree/mod.rs

@@ -107,8 +107,9 @@ pub type LeafParam<P> = <<P as Config>::LeafHash as CRHScheme>::Parameters;
 ///    [I] J
 /// ```
 ///  Suppose we want to prove I, then `leaf_sibling_hash` is J, `auth_path` is `[C,D]`
-#[derive(PartialEq, Derivative, CanonicalSerialize, CanonicalDeserialize)]
+#[derive(Derivative, CanonicalSerialize, CanonicalDeserialize)]
 #[derivative(
+    PartialEq(bound = "P: Config"),
     Clone(bound = "P: Config"),
     Debug(bound = "P: Config"),
     Default(bound = "P: Config")