added test framework and editor build settings missing from last PR

Packages/manifest.json

     "com.unity.mathematics": "1.2.1",
     "com.unity.memoryprofiler": "0.2.9-preview.3",
     "com.unity.render-pipelines.universal": "10.5.0",
+    "com.unity.test-framework": "1.1.27",
     "com.unity.testframework.graphics": "7.8.12-preview",
     "com.unity.textmeshpro": "3.0.6",
     "com.unity.timeline": "1.4.8",

ProjectSettings/EditorBuildSettings.asset

   m_ObjectHideFlags: 0
   serializedVersion: 2
   m_Scenes:
-  - enabled: 0
-    path: Assets/scenes/demo_Island.unity
-    guid: b3bf1324da98a41e796a5881dd3812eb
   - enabled: 1
     path: Assets/scenes/main_menu.unity
     guid: c817c1b09586c49e5b4a849ce1cf119b
-  - enabled: 0
-    path: Assets/scenes/Testing/benchmark_island-flythrough.unity
-    guid: c7a97972985ccaf4a9c8daf7e1db85ed
   - enabled: 1
     path: Assets/scenes/Testing/benchmark_island-static.unity
     guid: bf8529d52d0dac843b94245ecf955d4a