Bite 339. Retrieve food objects

Now that our API can add food objects, let's retrieve them from the foods dictionary.

In this Bite you will write two endpoints to do so:

- read_foods() to retrieve all foods

- read_food() to retrieve a single food by id (i.e. the key in the foods dictionary). For this you will need what FastAPI calls a path parameter.

After completing this Bite, you will be halfway there with the CRUD (create-read-update-delete) of foods. In the next Bite we'll have you implement the update and delete endpoints.

Good luck!