Converted a couple more things to shared pointers.

src/dawn/scene/components/display/Camera.hpp

@@ -29,7 +29,7 @@ namespace Dawn {
       }
 
       // @optional
-      StateProperty<RenderTarget*> renderTarget;
+      StateProperty<std::shared_ptr<RenderTarget>> renderTarget;
       // @optional
       StateProperty<float_t> fov;
       // @optional
@@ -70,7 +70,7 @@ namespace Dawn {
        * 
        * @return The target render target framebuffer.
        */
-      RenderTarget * getRenderTarget();
+      std::shared_ptr<RenderTarget> getRenderTarget();
 
       /**
        * Returs the aspect ratio of the camera.