Added effect engine

Devices/Keyboard/Effects/EffectTimeContainer.cs

@@ -0,0 +1,23 @@
+namespace CUE.NET.Devices.Keyboard.Effects
+{
+    internal class EffectTimeContainer
+    {
+        #region Properties & Fields
+
+        internal IEffect Effect { get; set; }
+
+        internal long TicksAtLastUpdate { get; set; }
+
+        #endregion
+
+        #region Constructors
+
+        internal EffectTimeContainer(IEffect effect, long ticksAtLastUpdate)
+        {
+            Effect = effect;
+            TicksAtLastUpdate = ticksAtLastUpdate;
+        }
+
+        #endregion
+    }
+}

Devices/Keyboard/Effects/IEffect.cs

@@ -0,0 +1,29 @@
+using System.Collections.Generic;
+using CUE.NET.Devices.Keyboard.Brushes;
+using CUE.NET.Devices.Keyboard.Keys;
+
+namespace CUE.NET.Devices.Keyboard.Effects
+{
+    public interface IEffect
+    {
+        #region Properties & Fields
+
+        IBrush EffectBrush { get; }
+
+        IEnumerable<CorsairKey> KeyList { get; }
+
+        bool IsDone { get; }
+
+        #endregion
+
+        #region Methods
+        
+        void Update(float deltaTime);
+
+        void OnAttach();
+
+        void OnDetach();
+
+        #endregion
+    }
+}