chore(growth): add log in loader

lib/growth/indicators/load.ex

@@ -34,6 +34,8 @@ defmodule Growth.Indicators.Load do
 
   use Task
 
+  require Logger
+
   alias Growth.Score
 
   @measure_to_score [
@@ -62,6 +64,8 @@ defmodule Growth.Indicators.Load do
   Load indicators csv files into their own ets tables.
   """
   def all do
+    Logger.debug("load growth indicators")
+
     "priv/growth/indicators/*.csv"
     |> Path.wildcard()
     |> Enum.map(&create_ets_from_filename/1)
@@ -107,6 +111,8 @@ defmodule Growth.Indicators.Load do
   Read, convert, and load a measure/filename into the proper ets table.
   """
   def load_measure({measure, filename}) do
+    Logger.debug("load data from #{filename} into #{measure}")
+
     filename
     |> read()
     |> convert()