Update obiuniq for very large dataset

pkg/obichunk/chunk.go

@@ -7,11 +7,15 @@ import (
 
 func ISequenceChunk(iterator obiiter.IBioSequence,
 	classifier *obiseq.BioSequenceClassifier,
-	onMemory bool) (obiiter.IBioSequence, error) {
+	onMemory bool,
+	dereplicate bool,
+	na string,
+	statsOn obiseq.StatsOnDescriptions,
+) (obiiter.IBioSequence, error) {
 
 	if onMemory {
 		return ISequenceChunkOnMemory(iterator, classifier)
 	} else {
-		return ISequenceChunkOnDisk(iterator, classifier)
+		return ISequenceChunkOnDisk(iterator, classifier, dereplicate, na, statsOn)
 	}
 }