Group testing modules (#3014)

* move security content from spring-security-rest-full

* swagger update

* move query language to new module

* rename spring-security-rest-full to spring-rest-full

* group persistence modules

* group testing modules

* try fix conflict

testing-modules/testng/src/test/java/com/baeldung/RegistrationLongRunningUnitTest.java

@@ -0,0 +1,14 @@
+package com.baeldung;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.testng.annotations.Test;
+
+public class RegistrationLongRunningUnitTest {
+    private static final Logger LOGGER = LoggerFactory.getLogger(RegistrationLongRunningUnitTest.class);
+
+    @Test
+    public void whenCalledFromSuite_thanOK() {
+        LOGGER.info("Registration successful");
+    }
+}