title: HitTest prints AR Entity name even when I am not tapping on it
body: <p>My <code>Experience.rcproject</code> has animations that can be triggered by tap action. 
  Two cylinders are named “Button 1” and “Button 2” and have Collide turned on. </p>
  
  <p>I am using <code>Async</code> method to load Experience.Map scene and <code>addAnchor</code> method to add mapAnchor to ARView in a ViewController. </p>
  
  <p>I tried to run HitTest on the scene to see if the app reacts properly. </p>
  
  <p>Nonetheless, the HitTest result prints the entity name of a button even when I am not tapping on it but area near it. </p>
  
  <pre><code>class augmentedReality: UIViewController {
  
      @IBOutlet weak var arView: ARView!
  
      @IBAction func onTap(_ sender: UITapGestureRecognizer) {
          let tapLocation = sender.location(in: arView)
          // Get the entity at the location we've tapped, if one exists
          if let button = arView.entity(at: tapLocation) {
              // For testing purposes, print the name of the tapped entity
              print(button.name)
          }
      }
  }
  </code></pre>
  
  <p>Below is my attempt to add the AR scene and tap gesture recogniser to arView.</p>
  
  <pre><code>class augmentedReality: UIViewController {
  
      arView.scene.addAnchor(mapAnchor)
      mapAnchor.notifications.hideAll.post()
      mapAnchor.notifications.mapStart.post()
  
      self.arView.isUserInteractionEnabled = true
      let tapGesture = UITapGestureRecognizer(target: self, action: #selector(onTap))
      self.arView.addGestureRecognizer(tapGesture)
  }
  </code></pre>
  
  <p><strong>Question 1</strong></p>
  
  <p>How can I achieve the goal of only having the entity name of a button printed when I am really tapping on it instead of close to it?</p>
  
  <p><strong>Question 2</strong></p>
  
  <p>Do I actually need to turn Collide on to have both buttons able to be detected in the HitTest?</p>
  
  <p><strong>Question 3</strong></p>
  
  <p>There’s an installGestures method. There’s no online tutorials or discussions about this at the moment. I tried but I am confused by (Entity &amp; HasCollision). How can this method be implemented?</p>