chore: 외부 에셋 권한 및 줄바꿈 재기록 반영

- Assets/External 하위 샘플 및 서드파티 에셋 파일의 실행 비트 변경을 별도 커밋으로 분리
- PolygonGeneric, SidekickCharacters, Synty 도구 자산 전반의 줄바꿈 및 재직렬화 차이를 그대로 보존
- 프로젝트 고유 로직 변경과 분리해 이후 히스토리에서 외부 에셋 노이즈 범위를 식별하기 쉽게 정리

Assets/External/Models/SidekickCharacters/Scripts/Editor/UI/DatabaseUpdateController.cs

@@ -1,15 +1,15 @@
-// Copyright (c) 2024 Synty Studios Limited. All rights reserved.
-//
-// Use of this software is subject to the terms and conditions of the Synty Studios End User Licence Agreement (EULA)
-// available at: https://syntystore.com/pages/end-user-licence-agreement
-//
-// For additional details, see the LICENSE.MD file bundled with this software.
-
-namespace Synty.SidekickCharacters
-{
-    public class DatabaseUpdateController
-    {
-        // This class is no longer required, and will be deleted in the future.
-        // Included as an empty class to remove code dependencies to allow for deletion without causing project errors.
-    }
-}
+// Copyright (c) 2024 Synty Studios Limited. All rights reserved.
+//
+// Use of this software is subject to the terms and conditions of the Synty Studios End User Licence Agreement (EULA)
+// available at: https://syntystore.com/pages/end-user-licence-agreement
+//
+// For additional details, see the LICENSE.MD file bundled with this software.
+
+namespace Synty.SidekickCharacters
+{
+    public class DatabaseUpdateController
+    {
+        // This class is no longer required, and will be deleted in the future.
+        // Included as an empty class to remove code dependencies to allow for deletion without causing project errors.
+    }
+}