UI 자동화를 위해 바인딩 기능 구현

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Packages/com.unity.inputsystem/Samples~/RebindingUI/README.md

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+This sample demonstrates how to use the Input System APIs to set up a rebinding UI. The main file is
+[RebindActionUI](./RebindActionUI.cs) which, aside from serving as an example, contains a reusable `MonoBehaviour`
+component for composing rebinding UIs. The [RebindUIPrefab](./RebindUIPrefab.prefab) contains a ready-made prefab that
+can be used as a simple drop-in setup for rebinding an individual action.
+
+To demonstrate how to use images instead of textual display strings, take a look at
+[GamepadIconsExample](./GamepadIconsExample.cs).
+
+To demonstrate how to show dynamic UI texts based on input action bindings, see [ActionLabel](./ActionLabel.cs).
+
+[InputActionIndicator](./InputActionIndicator.cs) and [InputActionIndicator.prefab](./InputActionIndicator.prefab)
+shows how to make a simple UI indicator that shows whether an associated input action is enabled, disabled or
+performed. This behavior has been added to this sample to add observability of actions triggered within gameplay,
+menu and rebind contexts.
+
+The [RebindSaveLoad](./RebindSaveLoad.cs) script demonstrates how to persist user rebinds in `PlayerPrefs` and how
+to restore them.
+
+In this sample, keyboard bindings for "Move" (default WASD) is rebound as a single composite. This means that
+indivudual parts will get assigned one after the other. Another way of doing this is to set it up as four individual
+button bindings and assign them individually as four partial bindings.
+
+In this sample it is possible to directly rebind gamepad sticks in the gamepad control scheme. In practice, you
+probably don't want to set up rebinding the sticks like this but rather have a "swap sticks" kind of toggle instead.
+In this sample we have both variants for demonstration purposes. See [RebindActionUI.SwapBinding](./RebindActionUI.cs)
+for a method that swaps two bindings of similar type.
+
+The icons used in the sample are taken from
+[Free Prompts Pack v4.0](https://opengameart.org/content/free-keyboard-and-controllers-prompts-pack) created by,
+and made available to public domain by Nicolae Berbece.
+Icons are licensed under [Creative Commons CC0](https://creativecommons.org/publicdomain/zero/1.0/).