Added the project.

Assets/LightManager/Scripts/LightManager.cs

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+using UnityEngine;
+using System.Collections.Generic;
+
+public class LightManager<T> : MonoBehaviour
+{
+	static LightManager<T> s_Instance;
+	HashSet<T> m_Container = new HashSet<T>();
+
+	static LightManager<T> Instance
+	{
+		get
+		{
+			if (s_Instance != null)
+				return s_Instance;
+
+			s_Instance = (LightManager<T>) FindObjectOfType(typeof(LightManager<T>));
+			return s_Instance;
+		}
+	}
+
+	public static HashSet<T> Get()
+	{
+		LightManager<T> instance = Instance;
+		return instance == null ? new HashSet<T>() : instance.m_Container;
+	}
+
+	public static bool Add(T t)
+	{
+		LightManager<T> instance = Instance;
+		if (instance == null)
+			return false;
+	
+		instance.m_Container.Add(t);
+		return true;
+	}
+
+	public static void Remove(T t)
+	{
+		LightManager<T> instance = Instance;
+		if (instance == null)
+			return;
+	
+		instance.m_Container.Remove(t);
+	}
+}

Assets/LightManager/Scripts/LightManager.cs.meta

@@ -0,0 +1,12 @@
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+guid: 172fcfd4ae7b9874ea684dc927b34a73
+timeCreated: 1454671716
+licenseType: Pro
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+  defaultReferences: []
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Assets/LightManager/Scripts/LightManagerFogEllipsoids.cs

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+public class LightManagerFogEllipsoids : LightManager<FogEllipsoid>
+{
+
+}

Assets/LightManager/Scripts/LightManagerFogEllipsoids.cs.meta

@@ -0,0 +1,12 @@
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Assets/LightManager/Scripts/LightManagerFogLights.cs

@@ -0,0 +1,4 @@
+public class LightManagerFogLights : LightManager<FogLight>
+{
+
+}

Assets/LightManager/Scripts/LightManagerFogLights.cs.meta

@@ -0,0 +1,12 @@
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