Move data parsing/insertion from DB to API

[fgblomqvist]

Right now the API just takes whatever data it gets, validates it, and then sends it to the DB. This should be moved to the API to make it easier to manage. Furthermore, right now the format is the SCU specific format. This should also be changed into a more generic one. The SCU data should be formatted into the correct JSON by the scraper, who then sends it to the API.