Implement Products API Routes

[iDEaXANA]

Set up API routes in the Express app for handling products (GET all, GET one, POST, PUT, DELETE).

> /products/1
> DELETE
> /products/1
> PATCH
> /products/1
> PUT
> /products
> POST
> [/products?limit=5](https://fakestoreapi.com/products?limit=5)
> GET
> [/carts?userId=1](https://fakestoreapi.com/carts?userId=1)
> GET
> [/products/category/jewelery](https://fakestoreapi.com/products/category/jewelery)
> GET
> [/products/categories](https://fakestoreapi.com/products/categories)
> GET
> [/products/1](https://fakestoreapi.com/products/1)
> GET
> [/products](https://fakestoreapi.com/products)
> GET

[iDEaXANA]

• Need to figure out whether User model is needed and how to create associations between User, Product and a Cart, in order to make the Cart route useful.
• Check express restaurants project when I get home and move on.
• Will focus on RUD operations for Products now.