Add draft csv reader

reader_csv.rb

@@ -0,0 +1,25 @@
+def read_events file_name
+ first_row = true
+ names = []
+ events = []
+ CSV.foreach(file_name + ".csv") do |row|
+   if first_row
+     names = row
+     first_row = false
+   else
+     event_hash = {}
+     row.zip((0..(row.size - 1))).each do |field,position|
+       if names[position] == "date"
+         event_hash[names[position]] = Time.parse(field)
+       elsif names[position] == "complexity"
+         event_hash[names[position]] = field.to_f
+       else
+         event_hash[names[position]] = field
+       end
+     end
+     events << CodeEvent.new(event_hash)
+   end
+ end
+ events
+end
+