Add Checkstyle TypecastParenPad

Author: garydgregory

src/conf/checkstyle.xml

@@ -70,6 +70,7 @@ limitations under the License.
       <property name="ordered" value="true"/>
       <property name="separated" value="true"/>
     </module>
+    <module name="TypecastParenPad" />    
   </module>
   <!-- @author tags are deprecated -->
   <module name="RegexpSingleline">