Extract tracing metadata from Event not OriginalEvent#284

YoEight merged 1 commit intotrunkkurrent-io/KurrentDB-Client-Java:trunkfrom

DEVEX-77-Java-Client-Don-t-create-span-for-events-with-non-json-metadatakurrent-io/KurrentDB-Client-Java:DEVEX-77-Java-Client-Don-t-create-span-for-events-with-non-json-metadataCopy head branch name to clipboard