UI 자동화를 위해 바인딩 기능 구현

- 유니티 에셋 인증 오류로 meta 재생성

Packages/com.unity.inputsystem/InputSystem/Plugins/PlayerInput/PlayerJoinBehavior.cs

@@ -0,0 +1,40 @@
+namespace UnityEngine.InputSystem
+{
+    /// <summary>
+    /// Determines how <see cref="PlayerInputManager"/> joins new players.
+    /// </summary>
+    /// <remarks>
+    /// </remarks>
+    /// <seealso cref="PlayerInputManager"/>
+    /// <seealso cref="PlayerInputManager.joinBehavior"/>
+    public enum PlayerJoinBehavior
+    {
+        /// <summary>
+        /// Listen for button presses on devices that are not paired to any player. If they occur
+        /// and joining is allowed, join a new player using the device the button was pressed on.
+        /// </summary>
+        JoinPlayersWhenButtonIsPressed,
+
+        /// <summary>
+        /// Listen for button presses on devices that are not paired to any player. If the control
+        /// they triggered matches a specific action and joining is allowed, join a new player using
+        /// the device the button was pressed on.
+        /// </summary>
+        JoinPlayersWhenJoinActionIsTriggered,
+
+        /// <summary>
+        /// Don't join players automatically. Call <see cref="PlayerInputManager.JoinPlayerFromUI"/>
+        /// or <see cref="PlayerInputManager.JoinPlayerFromAction"/> explicitly in order to join new
+        /// players. Alternatively, just create GameObjects with <see cref="PlayerInput"/>
+        /// components directly and they will be joined automatically.
+        /// </summary>
+        /// <remarks>
+        /// This behavior also allows implementing more sophisticated device pairing mechanisms when multiple devices
+        /// are involved. While initial engagement required by <see cref="JoinPlayersWhenButtonIsPressed"/> or
+        /// <see cref="JoinPlayersWhenJoinActionIsTriggered"/> allows pairing a single device reliably to a player,
+        /// additional devices that may be required by a control scheme will still get paired automatically out of the
+        /// pool of available devices.
+        /// </remarks>
+        JoinPlayersManually,
+    }
+}