Timestamp based topic/partition assignment

[molszews]

Can we add an option to specify a timestamp which would be used to seek the consumer offset before we start actual consumer? At this moment it is problematic, as there is no hook between confluent consumer builder and actual consume() call. Fetching timestamp based offsets requires additional call before we start consuming, but after we got partition assigned.
Or maybe it is possible today? We can of course start KafkaBus and then manually seek the consumer after it got assignment but then we risk consuming messages we are not interested in.