Added Order and OrderItem entities in OrderDbContext

Added OrderItemConfigurations

Added AddShoppingCarItem API routing in the API Gateway project

Added EditProduct API routing in the API Gateway project

Added InsertProduct API routing in the API Gateway project

Added GetProduct API routing in the API Gateway project

Added Ocelot configurations in program.cs

Added ApiGateway

Added CheckoutShoppingCart method in Basket.Api project

Added AddShoppingCarItem method in Basket.Api project

Added Result class in CreateShoppingCartItemHandler for return specif…

Remove redundant classes in Basket.Api

Added GetCategory method in Catalog.API project

Added EditProduct method in Catalog.API project

Added InsertProduct method in Catalog.API project

Added GetProduct method and install MediatR library in Catalog.API pr…

Change HasField to HasColumnName for OrderDate field

Added Order Configurations and set configuration for orderDate privat…

Added Order entity and aggregateroot

Added Result class in CheckoutShoppingCartHandler for return specific…

Added Result class in EditProductCommandHandler for return specific r…

Added Result class in AddProductCommandHandler for return specific re…

Added Result class in DeleteCategoryCommandHandler for return specifi…

Use Result class in AddCategoryCommand

Add Result class to return an understandable message

Add AddQuantity methot in ShoppingCardItem

Add SetCategory method in product entity

Add HasParentCategory method in Category entity

Add DeleteCategoryCommandHandler

Add ChangePublishState method for category change publish state