Function run_reloadable_hooks

pub fn run_reloadable_hooks(
    instances: Query<'_, '_, (Entity, &Handle<Scene>, &SceneInstance, &Hook)>,
    scene_manager: Res<'_, SceneSpawner>,
    assets: Res<'_, AssetServer>,
    world: &World,
    cmds: Commands<'_, '_>,
)

Run Hooks and respawn scenes according to Hook::state.