title: Create Vertical SCNPlane parallel to camera
body: <p>i want to create an SCNPlane when user taps on screen right in front of the camera, i can create the plane but its not parallel to camera</p>
  
  <pre><code>    guard let sceneView = sender.view as? ARSCNView else {return}
      guard let currentFrame = sceneView.session.currentFrame else {return}
      let camera = currentFrame.camera
      let transform = camera.transform
      var translationMatrix = matrix_identity_float4x4
      translationMatrix.columns.3.z = -0.1
      var modifiedMatrix = simd_mul(transform, translationMatrix)
      let plane = SCNNode(geometry: SCNPlane(width: 0.42, height: 0.63))
      plane.geometry?.firstMaterial?.diffuse.contents = UIColor.yellow
      plane.simdTransform = modifiedMatrix
      self.sceneView.scene.rootNode.addChildNode(sphere)
  </code></pre>
  
  <p>how do i orient the plane parallel to camera??
  thanks for your help</p>