CogMap: map_utils.py import logging

__logging__ is used on line 144 but it is never imported.

research/cognitive_mapping_and_planning/src/map_utils.py

@@ -17,6 +17,7 @@
 """
 import copy
 import skimage.morphology
+import logging
 import numpy as np
 import scipy.ndimage
 import matplotlib.pyplot as plt