feat: 보스 스킬 추가 (스윙, 오른손치기2, 점프) 및 외부 애니메이션 추가

- 스윙, 오른손치기2, 점프 FBX 애니메이션 추가
- 각 스킬 데이터, 패턴 데이터, 데미지 이펙트 데이터 추가
- 우수2연타 패턴 삭제 및 오른손치기 스킬 데이터 수정
- BT_TestBoss 보스 AI 업데이트
- AnimationGoblinLocomotion 외부 애니메이션 패키지 추가

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Assets/External/Animations/AnimationGoblinLocomotion/Samples/Scenes/Demo_01_Polygon.unity.meta

@@ -0,0 +1,7 @@
+fileFormatVersion: 2
+guid: 2fd29d59534f6e346b607e6a6068a2dc
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/External/Animations/AnimationGoblinLocomotion/Samples/Scenes/Demo_01_Sidekick.unity.meta

@@ -0,0 +1,7 @@
+fileFormatVersion: 2
+guid: 31ed4239a729ac743b35f26eab53bd7b
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/External/Animations/AnimationGoblinLocomotion/Samples/Scenes/Gallery_01_Polygon.unity.meta

@@ -0,0 +1,7 @@
+fileFormatVersion: 2
+guid: 02d2d6107c8681242ac819217cdbac17
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/External/Animations/AnimationGoblinLocomotion/Samples/Scenes/Gallery_01_Sidekick.unity.meta

@@ -0,0 +1,7 @@
+fileFormatVersion: 2
+guid: 317d79511dc3ed4458820ef21e25ea8c
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: