Updating to Unity 2019.4.4f1.

Updating to 4.1.0-preview.5 of the ARF packages.

Assets/XR/Settings/AR Kit Settings.asset

   m_Name: AR Kit Settings
   m_EditorClassIdentifier: 
   m_Requirement: 0
-  m_FaceTracking: 0
+  m_FaceTracking: 1

Packages/manifest.json

     "com.unity.test-framework": "1.1.14",
     "com.unity.textmeshpro": "2.0.1",
     "com.unity.ugui": "1.0.0",
-    "com.unity.xr.arcore": "4.1.0-preview.3",
-    "com.unity.xr.arfoundation": "4.1.0-preview.3",
-    "com.unity.xr.arkit": "4.1.0-preview.3",
-    "com.unity.xr.arkit-face-tracking": "4.1.0-preview.3",
+    "com.unity.xr.arcore": "4.1.0-preview.5",
+    "com.unity.xr.arfoundation": "4.1.0-preview.5",
+    "com.unity.xr.arkit": "4.1.0-preview.5",
+    "com.unity.xr.arkit-face-tracking": "4.1.0-preview.5",
     "com.unity.xr.interaction.toolkit": "0.9.4-preview",
     "com.unity.modules.ai": "1.0.0",
     "com.unity.modules.androidjni": "1.0.0",

ProjectSettings/ProjectSettings.asset

   webGLWasmStreaming: 0
   scriptingDefineSymbols:
     1: UNITY_POST_PROCESSING_STACK_V2
-    4: UNITY_POST_PROCESSING_STACK_V2
+    4: UNITY_POST_PROCESSING_STACK_V2;UNITY_XR_ARKIT_LOADER_ENABLED;UNITY_XR_ARKIT_FACE_TRACKING_ENABLED
     7: UNITY_POST_PROCESSING_STACK_V2
     13: UNITY_POST_PROCESSING_STACK_V2
     17: UNITY_POST_PROCESSING_STACK_V2

ProjectSettings/ProjectVersion.txt

-m_EditorVersion: 2019.4.1f1
-m_EditorVersionWithRevision: 2019.4.1f1 (e6c045e14e4e)
+m_EditorVersion: 2019.4.4f1
+m_EditorVersionWithRevision: 2019.4.4f1 (1f1dac67805b)