Reduce redundante call to bytes.ToLower and substitute the last call by an home made version doing the conversion in place

Former-commit-id: d9ea22f649d97be352f8dbb37acc1495df830118

pkg/obiformats/ecopcr_read.go

@@ -1,7 +1,6 @@
 package obiformats
 
 import (
-	"bytes"
 	"compress/gzip"
 	"encoding/csv"
 	"fmt"
@@ -70,7 +69,7 @@ func __read_ecopcr_bioseq__(file *__ecopcr_file__) (*obiseq.BioSequence, error)
 		comment = strings.TrimSpace(record[19])
 	}
 
-	bseq := obiseq.NewBioSequence(name, bytes.ToLower(sequence), comment)
+	bseq := obiseq.NewBioSequence(name, sequence, comment)
 	annotation := bseq.Annotations()
 
 	annotation["ac"] = name

pkg/obiformats/embl_read.go

@@ -141,10 +141,10 @@ func _ParseEmblFile(source string, input <-chan _FileChunk, out obiiter.IBioSequ
 				}
 			case line == "//":
 				sequence := obiseq.NewBioSequence(id,
-					bytes.ToLower(seqBytes.Bytes()),
+					seqBytes.Bytes(),
 					defBytes.String())
 				sequence.SetSource(source)
-				
+
 				sequence.SetFeatures(featBytes.Bytes())
 
 				annot := sequence.Annotations()

pkg/obiformats/fastseq_read.go

@@ -7,7 +7,6 @@ package obiformats
 import "C"
 
 import (
-	"bytes"
 	"fmt"
 	"os"
 	"path"
@@ -42,7 +41,7 @@ func _FastseqReader(source string,
 			comment = ""
 		}
 
-		rep := obiseq.NewBioSequence(name, bytes.ToLower(sequence), comment)
+		rep := obiseq.NewBioSequence(name, sequence, comment)
 		rep.SetSource(source)
 		if s.qual.l > C.ulong(0) {
 			cquality := unsafe.Slice(s.qual.s, C.int(s.qual.l))

pkg/obiformats/genbank_read.go

@@ -69,7 +69,7 @@ func _ParseGenbankFile(source string,
 			case line == "//":
 				log.Debugln("Total lines := ", nl)
 				sequence := obiseq.NewBioSequence(id,
-					bytes.ToLower(seqBytes.Bytes()),
+					seqBytes.Bytes(),
 					defBytes.String())
 				sequence.SetSource(source)
 				state = inHeader