Implement REST framework

• Implement APIs for Playlist-Manager and Playout

  • Retrieve shows of a user
  • Update show
  • Retrieve Timeslots of a show
  • Update timeslot with playlist_id
  • Retrieve notes
  • Add/change note
  • Retrieve user
  • Update user

• API for Playout

• API for displaying daily program on the website (shows, timeslots, hosts, notes, etc.)