com.unity.xr.arkit 5.0.0-pre.5 Package Notes

`com.unity.xr.arkit-face-tracking` is no longer a separate package and has merged into `com.unity.xr.arkit`. The features that are now available with this package include (See the old face tracking changelog for more details):
- Provides runtime support for Face Tracking on ARKit.
- Support for ARKit 3 functionality: multiple face tracking and tracking a face (with front camera) while in world tracking (with rear camera).
The minimum Unity version for this package is now 2021.2.

Removed conditional dependency on the deprecated Lightweight Renderpipeline (LWRP) package.

com.unity.xr.arkit 5.0.0-pre.5