Ensure @Component scanned from jar on classpath can be inspected

And test it using a new POF sample.

spring-cloud-function-samples/pom.xml

@@ -14,6 +14,7 @@
 
 	<modules>
 		<module>spring-cloud-function-sample</module>
+		<module>spring-cloud-function-sample-pof</module>
 		<module>spring-cloud-function-sample-pojo</module>
 		<module>spring-cloud-function-sample-compiler</module>
 		<module>spring-cloud-function-sample-task</module>