Feature/improve l1 b reader

tests/test_l1b_reader.py

-#!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
 """
@@ -68,6 +67,9 @@ class Test_L1B_Reader(unittest.TestCase):
                             snr_swir=os.path.join(tmpdir, "SNR_D2.hdr"))
                         self.assertIsInstance(L1_obj, EnMAPL1Product_SensorGeo)
 
+    def test_bandnumbers(self):
+        print("bast scho")
+
 
 if __name__ == "__main__":
     unittest.main()