Added io.WriterTo implementation to ByteBuffer

bytebuffer.go

@@ -1,5 +1,7 @@
 package bytebufferpool
 
+import "io"
+
 // ByteBuffer provides byte buffer, which can be used for minimizing
 // memory allocations.
 //
@@ -14,6 +16,12 @@ type ByteBuffer struct {
 	B []byte
 }
 
+// WriteTo implements io.WriterTo
+func (b *ByteBuffer) WriteTo(w io.Writer) (int64, error) {
+	n, err := w.Write(b.B)
+	return int64(n), err
+}
+
 // Bytes returns b.B, i.e. all the bytes accumulated in the buffer.
 //
 // The purpose of this function is bytes.Buffer compatibility.