[Bleeding] Cleanup clone methods.

By: Wesley Wolfe <weswolf@aol.com>

paper-api/src/main/java/org/bukkit/material/PressurePlate.java

@@ -34,4 +34,9 @@ public class PressurePlate extends MaterialData implements PressureSensor {
     public String toString() {
         return super.toString() + (isPressed() ? " PRESSED" : "");
     }
+
+    @Override
+    public PressurePlate clone() {
+        return (PressurePlate) super.clone();
+    }
 }