camera support rotationQuaternion

src/Loading/Plugins/babylon.babylonFileLoader.ts

@@ -478,7 +478,12 @@
                 camera.target = BABYLON.Vector3.FromArray(parsedCamera.target);
             }
         } else {
-            camera.rotation = BABYLON.Vector3.FromArray(parsedCamera.rotation);
+            if (parsedCamera.rotationQuaternion) {
+                camera.rotationQuaternion = BABYLON.Quaternion.FromArray(parsedCamera.rotationQuaternion);
+            }
+            else {
+                camera.rotation = BABYLON.Vector3.FromArray(parsedCamera.rotation);
+            }
         }
 
         camera.fov = parsedCamera.fov;