adding directional light actor

src/Engine/Actor/PointLightActor.h

@@ -0,0 +1,17 @@
+#pragma once
+#include "Actor.h"
+#include "Component/PointLight.h"
+
+namespace Seele
+{
+class PointLightActor : public Actor
+{
+public:
+    PointLightActor(PScene scene);
+    virtual ~PointLightActor();
+    Component::PointLight& getPointLightComponent();
+    const Component::PointLight& getPointLightComponent() const;
+private:
+};
+DEFINE_REF(PointLightActor)
+} // namespace Seele