ARGO-218883 - Revert "Revert "Added configurable ProducerRecord to Co…

…nsumerRecord mapper. The default mapper does not include metadata and headers. Alternative mappers can now be specified.""

Removed reformatting. Reapplied changes.

This reverts commit bf4135f

assurance/src/main/java/com/obsidiandynamics/jackdaw/MockKafka.java

@@ -116,7 +116,7 @@ public Future<RecordMetadata> send(ProducerRecord<K, V> r, Callback callback) {
             } else {
               final Future<RecordMetadata> f = super.send(r, (metadata, exception) -> {
                 if (callback != null) callback.onCompletion(metadata, exception);
-                final ConsumerRecord<K, V> consumerRecord = recordMapper.apply(r, metadata);
+                ConsumerRecord<K, V> consumerRecord = recordMapper.apply(r, metadata);
                 enqueue(consumerRecord);
               });
               return f;