Minimal APIs support auto map for RESTful

[doddgu]

like mvc controller:

public class TestService: ServiceBase
{
    public TestService()
    {
        MapToRESTful();
    }

    dynamic Get(int Id)
    {
        // todo something
    }
}

[MayueCif]

lack RequireAuthorization method like MapControllers().RequireAuthorization()

[doddgu]

@zhenlei520 PTAL, maybe it can add to 0.6?

[zhenlei520]

lack RequireAuthorization method like MapControllers().RequireAuthorization()

@MayueCif like this?

App.MapGet("/ping/healthy", () =>
{
    return "success";
}).RequireAuthorization("user");

Currently, only a single method specification is supported. Specifying policies by group is not currently supported. We will support it in subsequent releases. Try to support in 0.6.0

[zhenlei520]

@zhenlei520 PTAL, maybe it can add to 0.6?

@doddgu Try to support in 0.6.0

[doddgu]

#241