Refactor LevelGenerator and GameBootstrap; update project settings for improved performance

Assets/Settings/Mobile_RPAsset.asset

@@ -101,24 +101,24 @@ MonoBehaviour:
       m_Keys: []
       m_Values: 
   m_PrefilteringModeMainLightShadows: 3
-  m_PrefilteringModeAdditionalLight: 4
+  m_PrefilteringModeAdditionalLight: 3
   m_PrefilteringModeAdditionalLightShadows: 0
   m_PrefilterXRKeywords: 1
-  m_PrefilteringModeForwardPlus: 1
+  m_PrefilteringModeForwardPlus: 0
   m_PrefilteringModeDeferredRendering: 0
   m_PrefilteringModeScreenSpaceOcclusion: 0
   m_PrefilterDebugKeywords: 1
   m_PrefilterWriteRenderingLayers: 1
   m_PrefilterHDROutput: 1
-  m_PrefilterAlphaOutput: 0
+  m_PrefilterAlphaOutput: 1
   m_PrefilterSSAODepthNormals: 1
   m_PrefilterSSAOSourceDepthLow: 1
-  m_PrefilterSSAOSourceDepthMedium: 0
+  m_PrefilterSSAOSourceDepthMedium: 1
   m_PrefilterSSAOSourceDepthHigh: 1
-  m_PrefilterSSAOInterleaved: 0
+  m_PrefilterSSAOInterleaved: 1
   m_PrefilterSSAOBlueNoise: 1
   m_PrefilterSSAOSampleCountLow: 1
-  m_PrefilterSSAOSampleCountMedium: 0
+  m_PrefilterSSAOSampleCountMedium: 1
   m_PrefilterSSAOSampleCountHigh: 1
   m_PrefilterDBufferMRT1: 1
   m_PrefilterDBufferMRT2: 1
@@ -128,14 +128,14 @@ MonoBehaviour:
   m_PrefilterSoftShadowsQualityHigh: 1
   m_PrefilterSoftShadows: 0
   m_PrefilterScreenCoord: 1
-  m_PrefilterScreenSpaceIrradiance: 0
+  m_PrefilterScreenSpaceIrradiance: 1
   m_PrefilterNativeRenderPass: 1
   m_PrefilterUseLegacyLightmaps: 0
-  m_PrefilterBicubicLightmapSampling: 0
-  m_PrefilterReflectionProbeRotation: 0
+  m_PrefilterBicubicLightmapSampling: 1
+  m_PrefilterReflectionProbeRotation: 1
   m_PrefilterReflectionProbeBlending: 0
   m_PrefilterReflectionProbeBoxProjection: 0
-  m_PrefilterReflectionProbeAtlas: 0
+  m_PrefilterReflectionProbeAtlas: 1
   m_ShaderVariantLogLevel: 0
   m_ShadowCascades: 0
   m_Textures: