update yaml_util import

Author: lily-tomkovic-DWR

schimpy/create_station_output.py

@@ -3,7 +3,7 @@
 import os
 import pandas as pd
 import schimpy.station as station
-from schimpy.util.yaml_load import yaml_from_file
+from schimpy.yaml_util import yaml_from_file
 import glob
 import numpy as np
 from datetime import datetime