Update package dependencies to include test-framework, now a separate package.

Packages/manifest.json

     "com.unity.xr.arkit": "2.1.0-preview.1",
     "com.unity.xr.arkit-face-tracking": "2.0.0-preview.1",
     "com.unity.xr.legacyinputhelpers": "2.0.2",
+    "com.unity.test-framework": "1.0.9",
     "com.unity.modules.ai": "1.0.0",
     "com.unity.modules.androidjni": "1.0.0",
     "com.unity.modules.animation": "1.0.0",

ProjectSettings/ProjectVersion.txt

-m_EditorVersion: 2019.2.0a11
-m_EditorVersionWithRevision: 2019.2.0a11 (50bfd5f1a2f4)
+m_EditorVersion: 2019.2.0a13
+m_EditorVersionWithRevision: 2019.2.0a13 (7d71eaf2acca)