added function ReadBnn to convert from reader directly

bnn.go

@@ -2,6 +2,7 @@ package bnn
 
 import (
 	"bufio"
+	"io"
 	"os"
 	"strconv"
 	"strings"
@@ -122,7 +123,17 @@ func ReadBnnFile(path string) (Bnn, error) {
 	}
 	defer file.Close()
 
-	scanner := bufio.NewScanner(file)
+	content, err := ReadBnn(file)
+	if err != nil {
+		return Bnn{}, err
+	}
+
+	return content, nil
+}
+
+// ReadBnn Reads from reader and returns object with all containing information
+func ReadBnn(r io.Reader) (Bnn, error) {
+	scanner := bufio.NewScanner(r)
 	var lines []string
 
 	for scanner.Scan() {