Scene in memory persistance and debug tools (#24)

![image](https://github.com/storytold/storyteller-bevy/assets/10954133/10eb5c33-2154-4e9d-95ce-1d8e8b822d22)
Debug tools example

---------

Co-authored-by: Danny McGee <dannymcgee@gmail.com>

studio/src/interaction/gizmos/camera.rs

@@ -3,13 +3,14 @@ use bevy::{
     prelude::*,
     render::view::RenderLayers,
 };
+use space_editor::space_editor_ui::NotShowCamera;
 
 use crate::MainCamera;
 
 use super::GIZMO_RENDER_LAYER;
 
 #[derive(Component)]
-pub(super) struct GizmoCamera;
+pub struct GizmoCamera;
 
 pub(super) fn spawn_gizmo_camera(
     mut cmd: Commands,
@@ -35,6 +36,22 @@ pub(super) fn spawn_gizmo_camera(
             },
             RenderLayers::layer(GIZMO_RENDER_LAYER),
             Fxaa::default(),
+            NotShowCamera,
         ));
     });
 }
+
+pub(super) fn sync_gizmo_and_main_cameras(
+    q_main_camera: Query<&Camera, (With<MainCamera>, Without<GizmoCamera>)>,
+    mut q_gizmo_camera: Query<&mut Camera, (With<GizmoCamera>, Without<MainCamera>)>,
+) {
+    let Ok(main_cam) = q_main_camera.get_single() else {
+        return;
+    };
+
+    let Ok(mut gizmo_cam) = q_gizmo_camera.get_single_mut() else {
+        return;
+    };
+
+    gizmo_cam.viewport = main_cam.viewport.clone();
+}