title: How do I make protobuf case-insensitive?
body: <p>I have a protobuf contract like this,</p>
  
  <p><code>message Car{
          string carId = 1;
      }</code></p>
  
  <p>I generate java classes from this contract and use it to parse JSON request.</p>
  
  <p>Now if my JSON has "CarID" or "carid" then protobuf generated java classes don't recognize that field. How do I make it case-insensitive?</p>