Add core game components including ConfigFileHandler, GameManager, SaveSystem, and UIManager

Autoloads/ConfigFileHandler.cs

@@ -0,0 +1,25 @@
+using Godot;
+
+namespace Mr.BrickAdventures.Autoloads;
+
+public partial class ConfigFileHandler : Node
+{
+    private ConfigFile _settingsConfig = new();
+    private const string SettingsPath = "user://settings.ini";
+
+    public override void _Ready()
+    {
+        if (!FileAccess.FileExists(SettingsPath))
+        {
+            var err = _settingsConfig.Save(SettingsPath);
+            if (err != Error.Ok)
+                GD.PushError($"Failed to create settings file at {SettingsPath}: {err}");
+        }
+        else
+        {
+            var err = _settingsConfig.Load(SettingsPath);
+            if (err != Error.Ok)
+                GD.PushError($"Failed to load settings file at {SettingsPath}: {err}");
+        }
+    }
+}