Created first version of create_alarms function

- wrote the create_alarms function, which will go through all existing
  alarm settings, and create the next week's worth of alarms. In the final
  version, this function should create the alarms for the week AFTER the
  current week, rather than the actual current week. Also handles the
  complexities involved with using differing timezones.
- Updated the features to match this new functionality. The entity reference
  joining the alarm settings and the alarms was moved into the alarm settings
  content type as opposed to the actual alarm.