create io_services.py.

The inital services files. This provides a function to load the CSV
file of the raw test data (factory1 Light Meter).

src/services/io_services.py

@@ -0,0 +1,11 @@
+import csv
+import datetime
+
+def load_raw_data(path):
+    data = dict()
+    with open(path) as csv_file:
+        csv_reader = csv.reader(csv_file, delimiter=",")
+        for r in csv_reader:
+            if (r[1] != "Time Stamp"):
+                data[r[1]] = r[2]
+    return data