Update scenes, lighting and glass materials

Heavy authoring pass on The Room scene plus lighting/render tuning across
scenes: Lobby gets lower ambient/reflection intensity, softer shadow
strength and a baked lighting data asset; Main and Test Map drop their
lighting data/settings links. Replace the living-room Glass materials with
reworked versions under Assets/Materials, update BrightDaySettings, and set
hunterCount to 0 in Main.

Assets/Scenes/Test Map.unity

@@ -94,7 +94,7 @@ LightmapSettings:
     m_TrainingDataDestination: TrainingData
     m_LightProbeSampleCountMultiplier: 4
   m_LightingDataAsset: {fileID: 20201, guid: 0000000000000000f000000000000000, type: 0}
-  m_LightingSettings: {fileID: 4890085278179872738, guid: 56d13d8d8e47a444289d2b75153e599a, type: 2}
+  m_LightingSettings: {fileID: 0}
 --- !u!196 &4
 NavMeshSettings:
   serializedVersion: 2