Add Stream processing example

spring-cloud-data-flow/data-flow-shell/src/main/java/org/baeldung/spring/cloud/DataFlowShellApplication.java

@@ -8,7 +8,7 @@ import org.springframework.cloud.dataflow.shell.EnableDataFlowShell;
 @SpringBootApplication
 public class DataFlowShellApplication {
 
-	public static void main(String[] args) {
-		SpringApplication.run(DataFlowShellApplication.class, args);
-	}
+    public static void main(String[] args) {
+        SpringApplication.run(DataFlowShellApplication.class, args);
+    }
 }

spring-cloud-data-flow/data-flow-shell/src/test/java/org/baeldung/spring/cloud/DataFlowShellApplicationTests.java

@@ -9,8 +9,8 @@ import org.springframework.test.context.junit4.SpringRunner;
 @SpringBootTest
 public class DataFlowShellApplicationTests {
 
-	@Test
-	public void contextLoads() {
-	}
+    @Test
+    public void contextLoads() {
+    }
 
 }