Add support for override of property names

Hi! Thank you for the great library!

Could you add support of overrided property names by attributes? For example, we have following model:

public class BestShot
    {
        [JsonProperty("photo")]
        public string Link { get; set; }

        [JsonProperty("zone")]
        public string Area { get; set; }
    }

Json properties are received from external system and can not be changed, but in our code we wish to work with more clear property names, so we use [JsonProperty] attribute

In such case validation rules are not applied because they does not know about OpenAPI properties generated by attributes. The only place it could be done is inside FluentValidationRules, but where istoo many internal stuff to override it

May be it could be done introducing some sort of map between .Net Property name and OpenAPI name like

new Dictionary<string, string>{{nameof(BestShot.Link), "photo"}}

attached to the type somewhere in AddFluentValidationRules options

[Sergey-Terekhin]

1. We use Newtonsoft
2. In Swagger I see photo as expected, but validator works for the Link property (as expected too) and does not know anything about property names in OpenAPI

The only place where mapping is possible is documentation filter - it knows about type and about open api schema. But we need to define mapping somehow - in dictionary or in other way (read from attribute for example).

Some interface which I could implement would be great

[Sergey-Terekhin]

I’ll try a bit later. Next week possible