Use properties in Renderer.

DaggerFramework/Source/SceneGraph/IMainLoop.cs

@@ -2,10 +2,10 @@ namespace DaggerFramework.SceneGraph
 {
     public interface IMainLoop
     {
-        public void Init();
-        public void Start();
-        public bool ShouldStop();
-        public void Update();
-        public double DeltaTime { get; }
+        void Init();
+        void Start();
+        void Update();
+        double DeltaTime { get; }
+        bool ShouldRun { get; }
     }
 }