Split crate into shared logic library and binary crate (#52)

crates/shared/src/utils/auto_rotate.rs

@@ -0,0 +1,17 @@
+use bevy::prelude::*;
+
+#[derive(Component, Reflect)]
+#[reflect(Component)]
+pub struct AutoRotation(pub Quat);
+
+pub fn plugin(app: &mut App) {
+    app.register_type::<AutoRotation>();
+
+    app.add_systems(FixedUpdate, update_auto_rotation);
+}
+
+fn update_auto_rotation(mut query: Query<(&AutoRotation, &mut Transform)>) {
+    for (auto_rotation, mut transform) in query.iter_mut() {
+        transform.rotate_local(auto_rotation.0);
+    }
+}