UI 자동화를 위해 바인딩 기능 구현

- 유니티 에셋 인증 오류로 meta 재생성

Packages/com.unity.inputsystem/InputSystem/Editor/ControlPicker/IInputControlPickerLayout.cs

@@ -0,0 +1,13 @@
+#if UNITY_EDITOR
+using UnityEngine.InputSystem.Layouts;
+
+namespace UnityEngine.InputSystem.Editor
+{
+    internal interface IInputControlPickerLayout
+    {
+        void AddControlItem(InputControlPickerDropdown dropdown, DeviceDropdownItem parent,
+            ControlDropdownItem parentControl,
+            InputControlLayout.ControlItem control, string device, string usage, bool searchable);
+    }
+}
+#endif // UNITY_EDITOR