UI 자동화를 위해 바인딩 기능 구현

- 유니티 에셋 인증 오류로 meta 재생성

Packages/com.unity.inputsystem/InputSystem/Plugins/InputForUI/AssemblyInfo.cs

@@ -0,0 +1,6 @@
+using System.Runtime.CompilerServices;
+using UnityEngine.Scripting;
+
+[assembly: InternalsVisibleTo("UnityEngine.InputForUIVisualizer")]
+[assembly: InternalsVisibleTo("Unity.InputSystem.Tests")]
+[assembly: AlwaysLinkAssembly]