[BAEL-1615] Code to support article. (#3867)

* [BAEL-1615] Code to support article.

* Adding example of provides...with

* Adding uses to main module

core-java-9/src/simple-modules/hello.modules/module-info.java

@@ -0,0 +1,4 @@
+module hello.modules {
+    exports com.baeldung.modules.hello;
+    provides com.baeldung.modules.hello.HelloInterface with com.baeldung.modules.hello.HelloModules;
+}