feat: more plugin work and intra-scope communication

Game/GameServiceSource.cs

@@ -0,0 +1,19 @@
+using Godot;
+using GodotHostTest.GodotDI;
+using GodotHostTest.Interfaces;
+using OwofGames.GodotLume;
+
+namespace GodotHostTest.Game;
+
+public partial class GameServiceSource : RootServiceSource
+{
+    [Export] private LevelsData _levelsData = null!;
+
+    protected override void Configure(Builder builder)
+    {
+        builder
+            .AddSingleton<ICurrentLevel, CurrentLevel>()
+            .AddInstance<ILevelDataProvider, LevelsData>(_levelsData)
+            .AddValueProvider<ILevel, RootScope, LevelScope>();
+    }
+}