Generate REST API from entity context

[Kaliumhexacyanoferrat]

As a developer of a web application, I would like to expose an existing entity context as an API so that I do not have to write typical boiler code and can spin up a new API even faster.

Example

public class MyContext : DbContext
{

    public DbSet<MyType> MyTypes { get; set; }

}

var app = Entities.From<MyContext>()
                  .AddOpenApi();

Host.Create()
    .Handler(app)
    .Run();

Acceptance criteria

• The feature is implemented in a new module (or even GitHub repository)
• DbContext instances can either be created using a parameterless constructor or via a factory method
• Entities are automatically exposed via REST
• Entities can be filtered, paged etc.
• The logic reuses the MethodCollection capabilities for the sake of simplicity
• The feature is compatible with the Open API module (meaning that its content can be discovered)
• Authorization can be applied on entity/method level (probably another issue as this is also relevant for all of the other frameworks)
• The feature is documented as a framework on the GenHTTP website
• There is a project template for this kind of project
• The feature is covered by acceptance tests