Button remapping work

Zennysoft.Game.Ma/src/options/OptionsData.cs

@@ -0,0 +1,21 @@
+using Chickensoft.Introspection;
+using Chickensoft.Serialization;
+using Godot;
+
+namespace Zennysoft.Game.Ma;
+
+[Meta, Id("options_data")]
+public partial class OptionsData : Node
+{
+  [Save("MasterVolume")]
+  public required double MasterVolumeLevel { get; set; }
+
+  [Save("MusicVolume")]
+  public required double MusicVolumeLevel { get; set; }
+
+  [Save("SFXVolume")]
+  public required double SFXVolumeLevel { get; set; }
+
+  [Save("ScreenResolution")]
+  public required int ScreenResolution { get; set; }
+}