JAVA-15787 Created new di-modules and server-modules

- Moved spring-freemarker to spring-web-modules

server-modules/wildfly/src/main/java/hello/HelloController.java

@@ -0,0 +1,14 @@
+package hello;
+
+import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.bind.annotation.RequestMapping;
+
+@RestController
+public class HelloController {
+    
+    @RequestMapping("/")
+    public String index() {
+        return "Greetings from Spring Boot!";
+    }
+    
+}