title: Raycast to boundingBox of TextGeometry rather than the mesh
body: <p>I'm trying to raycast to TextGeometry's boundingBox. Currently, raycasting works for textGeometry when click is on the letters not around or inbetween letters. If the click is inbetween the text letters/aphabets, no object is intersected with intersectObjects(). I need the raycast to intersect the textGeo object when click is inbetween the letters as well.</p>
  
  <p>I'm defining TextGeometry as:</p>
  
  <pre><code>var textGeo = new THREE.TextGeometry( text, {
                      size: size,
                      height: 1,
                      font: 'helvetica'
                  });
  
  textGeo.computeBoundingBox();
  var textMaterial = new THREE.MeshBasicMaterial({ color: fontColor });
  var textMesh = new THREE.Mesh(textGeo, textMaterial);
  </code></pre>
  
  <p>After searching for solutions, going with the boundingBox seemed the best approach. Please advice or point to how this can be achieved. Any ideas or tips on how to do this? Or if there is any currently available approach. </p>
  
  <p>How would I make the raycast intersect the bounding box? </p>