UI 자동화를 위해 바인딩 기능 구현

- 유니티 에셋 인증 오류로 meta 재생성

Packages/com.unity.inputsystem/InputSystem/Plugins/UI/NavigationModel.cs

@@ -0,0 +1,27 @@
+#if UNITY_INPUT_SYSTEM_ENABLE_UI
+using UnityEngine.EventSystems;
+
+namespace UnityEngine.InputSystem.UI
+{
+    internal struct NavigationModel
+    {
+        public Vector2 move;
+        public int consecutiveMoveCount;
+        public MoveDirection lastMoveDirection;
+        public float lastMoveTime;
+        public AxisEventData eventData;
+        public InputDevice device;
+
+        public void Reset()
+        {
+            move = Vector2.zero;
+        }
+    }
+
+    internal struct SubmitCancelModel
+    {
+        public BaseEventData eventData;
+        public InputDevice device;
+    }
+}
+#endif