added debug view for reflections in fptl SRL

Assets/ScriptableRenderLoop/fptl/FptlLighting.cs

         public bool enableBigTilePrepass = true;
         public bool enableDrawLightBoundsDebug = false;
         public bool enableDrawTileDebug = false;
+		public bool enableReflectionProbeDebug = false;
         public bool enableComputeLightEvaluation = false;
         const bool k_UseDepthBuffer = true;//      // only has an impact when EnableClustered is true (requires a depth-prepass)
         const bool k_UseAsyncCompute = true;        // should not use on mobile
 
             m_DeferredMaterial.EnableKeyword(bUseClusteredForDeferred ? "USE_CLUSTERED_LIGHTLIST" : "USE_FPTL_LIGHTLIST");
             m_DeferredReflectionMaterial.EnableKeyword(bUseClusteredForDeferred ? "USE_CLUSTERED_LIGHTLIST" : "USE_FPTL_LIGHTLIST");
-            if (enableDrawTileDebug)
-                m_DeferredMaterial.EnableKeyword("ENABLE_DEBUG");
-            else
-                m_DeferredMaterial.DisableKeyword("ENABLE_DEBUG");
+			if (enableDrawTileDebug) {
+				m_DeferredMaterial.EnableKeyword ("ENABLE_DEBUG");
+			} else {
+				m_DeferredMaterial.DisableKeyword ("ENABLE_DEBUG");
+			}
+
+			if (enableReflectionProbeDebug) {
+				m_DeferredReflectionMaterial.EnableKeyword ("ENABLE_DEBUG");
+			} else {
+				m_DeferredReflectionMaterial.DisableKeyword ("ENABLE_DEBUG");
+			}
 
             cmd.SetGlobalBuffer("g_vLightListGlobal", bUseClusteredForDeferred ? s_PerVoxelLightLists : s_LightList);       // opaques list (unless MSAA possibly)
 

Assets/ScriptableRenderLoop/fptl/Internal-DeferredReflections.shader

 #pragma fragment frag
 
 #pragma multi_compile USE_FPTL_LIGHTLIST    USE_CLUSTERED_LIGHTLIST
+#pragma multi_compile __ ENABLE_DEBUG
 
 #include "UnityLightingCommon.cginc"
 
     uint numReflectionsProcessed = 0;
     float3 c = ExecuteReflectionList(numReflectionsProcessed, pixCoord, vP, data.normalWorld, Vworld, data.smoothness);
 
-    //c = OverlayHeatMap(numLightsProcessed, c);
+    #if ENABLE_DEBUG
+    	c = OverlayHeatMap(pixCoord & 15, numReflectionsProcessed, c);
+	#endif
+
     return float4(c,1.0);
 }