title: UnityEngine.XR.WSA.WorldManager namespace not found, where does it reside now?
body: <p>UnityEngine.XR.WSA.WorldManager is obsolete.</p>
  <p>What is the up to date alternative for</p>
  <p><code>UnityEngine.XR.WSA.WorldManager.GetNativeISpatialCoordinateSystemPtr();</code></p>
  <p>or has WorldManager moved home?</p>