Rework loading maps to be asynchronous, change debug menu so that its not completely pausing the game

Zennysoft.Game.Ma/src/utils/SceneLoader.cs

@@ -0,0 +1,41 @@
+using Godot;
+using System.Linq;
+
+namespace Zennysoft.Game.Ma;
+
+public partial class SceneLoader : Node
+{
+  private string _sceneToLoad;
+  private bool _loading = false;
+
+  [Signal]
+  public delegate void SceneLoadedEventHandler();
+
+  public Node LoadedScene { get; private set; }
+
+  public void LoadSceneRequest(string sceneToLoad)
+  {
+    ResourceLoader.LoadThreadedRequest(sceneToLoad);
+    _sceneToLoad = sceneToLoad;
+    _loading = true;
+  }
+
+  private void LoadScene()
+  {
+    _loading = false;
+    var scene = (PackedScene)ResourceLoader.LoadThreadedGet(_sceneToLoad);
+    LoadedScene = scene.Instantiate();
+    EmitSignal(SignalName.SceneLoaded);
+  }
+
+  public override void _Process(double delta)
+  {
+    if (!_loading)
+      return;
+
+    var progress = new Godot.Collections.Array();
+    ResourceLoader.LoadThreadedGetStatus(_sceneToLoad, progress);
+    if ((double)progress.Single() == 1)
+      LoadScene();
+  }
+}