title: Can we maintain object for text inputs in redux form
body: <p>I am thinking to use redux Form for my application. 
  can we maintain an object for text input types.
  ex: I have one field Title so in redux store i want to main it as:</p>
  
  <pre><code>Title: {
    en_US: "This is in English",
    en_GB: "This is UK English",
    fr_FR: "This is in french"
  }
  </code></pre>
  
  <p>So I have flags for selecting languages whenever i change the language my form should be rendered with the locale selected.
  Thanks</p>