BAEL-8964 Add a section in "NoSuchBeanDefinition" article

- Added example for no such bean definition example.

spring-boot-mvc/src/main/java/com/baeldung/springbootmvc/nosuchbeandefinitionexception/BeanA.java

@@ -0,0 +1,12 @@
+package com.baeldung.springbootmvc.nosuchbeandefinitionexception;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Component;
+
+@Component
+public class BeanA {
+	
+	@Autowired
+	BeanB dependency;
+
+}

spring-boot-mvc/src/main/java/com/baeldung/springbootmvc/nosuchbeandefinitionexception/BeanB.java

@@ -0,0 +1,5 @@
+package com.baeldung.springbootmvc.nosuchbeandefinitionexception;
+
+public class BeanB {
+
+}

spring-boot-mvc/src/main/java/com/baeldung/springbootmvc/nosuchbeandefinitionexception/NoSuchBeanDefinitionDemoApp.java

@@ -0,0 +1,12 @@
+package com.baeldung.springbootmvc.nosuchbeandefinitionexception;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class NoSuchBeanDefinitionDemoApp {
+
+	public static void main(String[] args) {
+		SpringApplication.run(NoSuchBeanDefinitionDemoApp.class, args);
+	}
+}