Improve TryBindQueryString with understanding MVC's FromQueryAttribute Name property

[abelbraaksma]

Today we (cc: @nkeenan38) tried to use TryBindQueryString, or the Context.tryBindQuery<_> function to bind to an object that contained PascalCase for what was snake_case in the query string.

type UserQueryInfo =
    { [<FromQuery(Name = "user_id")>]
      UserId: string }

With a querystring ?user_id=2345678, this won't work. Context.tryBindQuery<_> context will complain that it cannot find UserId.

So I looked over the code and noticed that the dictionary of key-value pairs is inspected with case-insensitivity, but other than that it must be an exact match. Yet it would be awesome if we can either allow automatic conversion of snake_case => SnakeCase properties, or that one of the MVC attributes get recognized.

I think FromQueryAttribute is a good candidate and greatly improves the usability of this function.