CF Acceptance tests - partitioning

* Partitioning samples
* Common partitioning producer, partitioned kafka consumer and partitioned rabbit consumer
* Local acceptance tests
* Adding CF acceptance tests for partitioning
* Externalizing CF e2e test credentials

processor-samples/uppercase-transformer/src/main/java/demo/UppercaseTransformer.java

@@ -69,7 +69,7 @@ public class UppercaseTransformer {
 
 		@StreamListener("test-sink")
 		public void receive(String payload) {
-			System.out.println("Data received: " + payload);
+			logger.info("Data received: " + payload);
 		}
 	}
 

processor-samples/uppercase-transformer/src/main/resources/application.yml

@@ -9,4 +9,4 @@ spring:
         input:
           destination: testtock
         test-source:
-          destination: testtock
+          destination: testtock