GET /api index.
GET /api/games get all games with details.
GET /api/genres get all genres.
GET /api/games/game/:id get specific game with details.
POST /api/games add a game with details.
POST /api/genres add a genre.
PUT /api/games/:id update specific game (include details) by id.
PUT /api/genres/:id update specific genre only by id.
DELETE /api/games/:id delete specific game by id.
DELETE /api/genres/:id delete specific genre by id.