Adding some tags to scene item components for the prefab tool

src/dawnrose/scene/components/GameCamera.hpp

@@ -15,9 +15,13 @@ namespace Dawn {
       glm::vec2 current = glm::vec2(0, 0);
 
     public:
+      // @optional
       glm::vec2 lookOffsetScale = glm::vec2(6.0f, 3.0f);
+      // @optional
       float_t movementScrollSpeed = 0.5f;
+      // @optional
       glm::vec3 zoomOffset = glm::vec3(0, 30.0f, 7.5f);
+      // @optional
       PlayerController *player = nullptr;
 
       GameCamera(SceneItem *item);

src/dawnrose/scene/components/PlayerController.hpp

@@ -12,6 +12,7 @@ namespace Dawn {
       CharacterController2D *characterController;
 
     public:
+      // @optional
       float_t moveSpeed = 80.0f;
 
       PlayerController(SceneItem *item);