Add more checkstyle tests

- Lines containing tab(s) after space
- Usage of printStackTrace
- Usage of println
- Add SupressionCommentFilter module

SuppressionCommentFilter can be enabled with
// CHECKSTYLE:OFF
and disabled with
// CHECKSTYLE:ON

smack-tcp/src/test/java/org/jivesoftware/smack/sm/provider/ParseStreamManagementTest.java

@@ -97,8 +97,6 @@ public class ParseStreamManagementTest {
                 .element(errorCondition.toString(), XMPPError.NAMESPACE)
                 .asString(outputProperties);
 
-        System.err.println(failedStanza);
-
         StreamManagement.Failed failedPacket = ParseStreamManagement.failed(
                 PacketParserUtils.getParserFor(failedStanza));