'new_without_default' clippy warnings

common/crypto/src/encryption/mod.rs

@@ -39,6 +39,12 @@ impl KeyPair {
     }
 }
 
+impl Default for KeyPair {
+    fn default() -> Self {
+        KeyPair::new()
+    }
+}
+
 impl PemStorableKeyPair for KeyPair {
     type PrivatePemKey = PrivateKey;
     type PublicPemKey = PublicKey;

common/crypto/src/identity/mod.rs

@@ -36,6 +36,12 @@ impl MixIdentityKeyPair {
     }
 }
 
+impl Default for MixIdentityKeyPair {
+    fn default() -> Self {
+        MixIdentityKeyPair::new()
+    }
+}
+
 impl PemStorableKeyPair for MixIdentityKeyPair {
     type PrivatePemKey = MixIdentityPrivateKey;
     type PublicPemKey = MixIdentityPublicKey;