add a method to duplicate address

Entity/Address.php

@@ -141,6 +141,15 @@ class Address
         return $this;
     }
 
+    public static function createFromAddress(Address $original) : Address
+    {
+        return (new Address())
+            ->setPostcode($original->getPostcode())
+            ->setStreetAddress1($original->getStreetAddress1())
+            ->setStreetAddress2($original->getStreetAddress2())
+            ->setValidFrom($original->getValidFrom())
+            ;
+    }
 
 }