Config: New Check HexLiteralCase

Author: zyadahmed

checkstyle-tester/checks-nonjavadoc-error.xml

@@ -490,6 +490,7 @@
       <property name="excludedClasses" value="\.Main$"/>
     </module>
     <module name="UpperEll"/>
+    <module name="HexLiteralCase"/>
 
     <!-- Modifiers -->
     <module name="ClassMemberImpliedModifier"/>