title: Trouble using JsonConvert with Interfaces without concrete Object
body: <p>I have some trouble about deserializing a message into an <em>undefined</em> object. I call this an undefined object because I don't have any proper class that resemble the data of the message. I only have an interface.
  Since the project I'm onto is kinda heavy, I won't display every single line of code except if you feel the need to ask.</p>
  
  <p>I have an interface let's call it ITest (That itself implements other interfaces and other class. So it's quite a complex one)</p>
  
  <p>And in my scope, I receive a "message" Serialized with JsonConvert following exactly the pattern of this Interface ITest. <em>I won't go into details how it was actually serialize, but the solution cannot be used for the deserialize aspect</em>. And here comes the problem :</p>
  
  <p>Since I have to deserialize this message into an interface, well... I obviously can't. So I tried many (MANY) workaround that. Using other Nuget (Like "Impromptu Interfaces" or Castle.Core), or even AutoMapping my interface to an Object type (dynamic), but either the code won't compile, or I get only half of the data or I get only the properties with null/0 values. The closest I got to was with Impromptu... I'm kinda desperate right now.</p>
  
  <p>I would like not to make those damn Concrete type. Since I would need a lot of them. DRY concept is bleeding rn :(</p>
  
  <p>Here is Impromptu</p>
  
  <pre><code>var obj = ActLike&lt;ITest&gt;(message)
  </code></pre>
  
  <p>Here is AutoMapping </p>
  
  <pre><code>    public interface ITest
      {
          string Test { get; set; }
          int Val { get; set; }
      }
  
      static void Main(string[] args)
      {
          Mapper.Initialize(cfg =&gt; { });
  
          var a = new { Test = "test", Val = 1 };
          ITest b = Mapper.Map(a, typeof(Object), typeof(ITest)) as ITest;
  
      }
  </code></pre>
  
  <p>Where I tried to change that damn "var a" into a dynamic Json object to be used into the mapping. And many other things ...</p>
  
  <p>So yeah ... I'm kinda stuck right now.</p>
  
  <p>Thanks for any help you could give me !</p>