Add order, product and bucket logic

[paekva]

BE:

• Endpoints to retrieve all orders, orders by the user, order by id, products, bucket by id
• Dao in BE for these entities
• DB tables
• Logic of adding/removing a product to a bucket, checkout of a bucket

FE:

• products page
• bucket page
• all orders page
• logic of adding/removing a product, checkout of a bucket