Refactor: 스크립트 폴더 구조 정리 및 Prop 폴더 이동

- Scripts 폴더 정리:
  - FlyCamera.cs → StreamingleControl/Camera/
  - LiveLinkFaceReceiver.cs → StreamingleControl/MotionCapture/
  - YBillboard.cs → StreamingleControl/Extensions/
  - CameraControlSystem.cs, CameraInfoUI.cs → StreamingleControl/Camera/
  - InputHandler.cs, rawkey.cs → StreamingleControl/Input/
  - 중복 IController.cs 제거

- ResourcesData 정리:
  - Background/Prop → ResourcesData/Prop 이동

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.gitignore

@@ -86,4 +86,4 @@ crashlytics-build.properties
 /[Aa]ssetBundles/
 
 # 프로파일러 데이터
-*.nvprof
+*.nvprofnul

Assets/External/websocket-sharp/websocket-sharp.csproj.meta

@@ -0,0 +1,7 @@
+fileFormatVersion: 2
+guid: ae0a68acee725e141b02318f249f7990
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/ResourcesData/Prop.meta

@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: 35102504d8db56d47ad2d715c5d151d3
+folderAsset: yes
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: