Add start and end fields to NutritionPlanInfoSerializer

Author: Dieterbe

wger/nutrition/api/serializers.py

@@ -342,6 +342,8 @@ class Meta:
         fields = [
             'id',
             'creation_date',
+            'start',
+            'end',
             'description',
             'only_logging',
             'goal_energy',