[BAEL-16662] Move articles out of spring-core and into spring-di and … (#7750)

* [BAEL-16662] Move articles out of spring-core and into spring-di and spring-core-2

* [BAEL-16662] Fixed required config classes

* [BAEL-16662] - Removed unused dependencies from spring-core

spring-di/src/main/java/com/baeldung/sample/FooService.java

@@ -0,0 +1,17 @@
+package com.baeldung.sample;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Component;
+
+@Component
+public class FooService {
+
+    @Autowired
+    @FormatterType("Foo")
+    private Formatter formatter;
+
+    public String doStuff() {
+        return formatter.format();
+    }
+
+}