Add checkstyle rules to check usage of System.out System.err

eclipse/checkstyle.xml

@@ -4,8 +4,22 @@
           "https://checkstyle.org/dtds/configuration_1_3.dtd">
 
 <module name="Checker">
+    <module name="TreeWalker">
+        <module name="RegexpSinglelineJava">
+            <property name="id" value="no_sys"/>
+            <property name="format" value="System\.(out|err)\.print(ln|f){0,1}\(.*\)"/>
+            <property name="ignoreComments" value="true"/>
+            <property name="message" value="No `sysout` or `syserr` allowed."/>
+        </module>
+    </module>
     <module name="RegexpSingleline">
         <property name="format" value="\s+$"/>
         <property name="message" value="No trailing white space allowed."/>
     </module>
+
+    <!-- Remove some rules for specifics classes -->
+    <module name="SuppressionSingleFilter">
+        <property name="id" value="no_sys"/>
+        <property name="files" value="FileLister.java"/>
+    </module>
 </module>