title: lodash: rename key in object
body: <p>I want to rename key in obj, from this:</p>
  
  <pre><code>objs = {
    one: { description: "value", amount: 5, value: { description: "value desc", identifier: "some text"} },
    two: { description: "value", amount: 5, value: { description: "value desc", identifier: "some text"} }
  }
  </code></pre>
  
  <p>into this:</p>
  
  <pre><code>objs = {
    one: { original_description: "value", amount: 5, value: { description: "value desc", identifier: "some text"} },
    two: { original_description: "value", amount: 5, value: { description: "value desc", identifier: "some text"} }
  }
  </code></pre>