Add option to skip unprocesseable event

Brought up by hashhar: an option to skip unprocesseable events may be a useful tool in the box to get unstuck in certain cases. Eg. he had a problem (fixed in DBZ already) where a Postgres DATE value wasn't processeable, causing the connector to stop. In that case it might be desirable to skip that event and continue with the next one. Such missing event then might be sent to Kafka manually or it's just fine if it's missing. That option should be off by default.