加入Scanner的默认实现，为了支持下老的spring版本

liteflow-spring/src/main/java/com/yomahub/liteflow/spring/ComponentScanner.java

@@ -72,6 +72,11 @@ public class ComponentScanner implements BeanPostProcessor {
 		}
 	}
 
+	@Override
+	public Object postProcessBeforeInitialization(Object bean, String beanName) throws BeansException {
+		return bean;
+	}
+
 	@SuppressWarnings("rawtypes")
 	@Override
 	public Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException {