Add auto-config for spring-security-oauth2-client

Closes gh-10497

spring-boot-samples/spring-boot-sample-oauth2-client/src/main/java/sample/oauth2/client/ExampleController.java

@@ -0,0 +1,19 @@
+package sample.oauth2.client;
+
+import java.security.Principal;
+
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+/**
+ * @author Madhura Bhave
+ */
+@RestController
+public class ExampleController {
+
+	@RequestMapping("/")
+	public String email(Principal principal) {
+		return "Hello " + principal.getName();
+	}
+
+}

spring-boot-samples/spring-boot-sample-oauth2-client/src/main/java/sample/oauth2/client/SampleOAuth2ClientApplication.java

@@ -0,0 +1,16 @@
+package sample.oauth2.client;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+/**
+ * @author Madhura Bhave
+ */
+@SpringBootApplication
+public class SampleOAuth2ClientApplication {
+
+	public static void main(String[] args) {
+		SpringApplication.run(SampleOAuth2ClientApplication.class);
+	}
+
+}