Update database architecture. Add genres and actors

database/models/__init__.py

@@ -1,4 +1,11 @@
 from .games import Game as Game
+from .game_genres import GameGenre as GameGenre
+
 from .movies import Movie as Movie
+from .movie_genres import MovieGenre as MovieGenre
+from .movie_actors import MovieActor as MovieActor
+
 from .audiobooks import Audiobook as Audiobook
+from .audiobook_genres import AudiobookGenre as AudiobookGenre
+
 from .users import User as User