Remove monkey.gltf (#9974)

# Objective

- Fixes #9967

## Solution

- Remove `monkey.gltf`
- Added `torus.gltf`, which is two torus meshes joined together, to
replace `monkey.gltf` in the examples

## Examples

I made `torus.gltf` mainly so that the multiple_windows example clearly
shows the different camera angles

### asset_loading

![image](https://github.com/bevyengine/bevy/assets/425184/0ee51013-973d-4b23-9aa6-d254fecde7f1)

### hot_asset_reloading

![image](https://github.com/bevyengine/bevy/assets/425184/b2a2b1d8-167e-478b-b954-756ca0bbe469)

### multiple_windows:

![image](https://github.com/bevyengine/bevy/assets/425184/cb23de2c-9ff8-4843-a5c0-981e4d29ae49)

![image](https://github.com/bevyengine/bevy/assets/425184/b00bc2c7-66e8-4881-8fab-08269e223961)

examples/asset/asset_loading.rs

@@ -43,23 +43,23 @@ fn setup(
     // to load.
     // If you want to keep the assets in the folder alive, make sure you store the returned handle
     // somewhere.
-    let _loaded_folder: Handle<LoadedFolder> = asset_server.load_folder("models/monkey");
+    let _loaded_folder: Handle<LoadedFolder> = asset_server.load_folder("models/torus");
 
     // If you want a handle to a specific asset in a loaded folder, the easiest way to get one is to call load.
     // It will _not_ be loaded a second time.
     // The LoadedFolder asset will ultimately also hold handles to the assets, but waiting for it to load
     // and finding the right handle is more work!
-    let monkey_handle = asset_server.load("models/monkey/Monkey.gltf#Mesh0/Primitive0");
+    let torus_handle = asset_server.load("models/torus/torus.gltf#Mesh0/Primitive0");
 
     // You can also add assets directly to their Assets<T> storage:
     let material_handle = materials.add(StandardMaterial {
         base_color: Color::rgb(0.8, 0.7, 0.6),
         ..default()
     });
 
-    // monkey
+    // torus
     commands.spawn(PbrBundle {
-        mesh: monkey_handle,
+        mesh: torus_handle,
         material: material_handle.clone(),
         transform: Transform::from_xyz(-3.0, 0.0, 0.0),
         ..default()

examples/asset/hot_asset_reloading.rs

@@ -13,9 +13,9 @@ fn main() {
 
 fn setup(mut commands: Commands, asset_server: Res<AssetServer>) {
     // Load our mesh:
-    let scene_handle = asset_server.load("models/monkey/Monkey.gltf#Scene0");
+    let scene_handle = asset_server.load("models/torus/torus.gltf#Scene0");
 
-    // Any changes to the mesh will be reloaded automatically! Try making a change to Monkey.gltf.
+    // Any changes to the mesh will be reloaded automatically! Try making a change to torus.gltf.
     // You should see the changes immediately show up in your app.
 
     // mesh

examples/window/multiple_windows.rs

@@ -14,7 +14,7 @@ fn main() {
 fn setup_scene(mut commands: Commands, asset_server: Res<AssetServer>) {
     // add entities to the world
     commands.spawn(SceneBundle {
-        scene: asset_server.load("models/monkey/Monkey.gltf#Scene0"),
+        scene: asset_server.load("models/torus/torus.gltf#Scene0"),
         ..default()
     });
     // light