feat: initial import

GodotDI/ISceneInstantiator.cs

@@ -0,0 +1,20 @@
+using Godot;
+
+namespace GodotHostTest.GodotDI;
+
+public interface ISceneInstantiator
+{
+    /// <summary>
+    /// Instantiate a packed scene, just like <see cref="PackedScene.Instantiate"/>, but also looks for a scope between the top level children and triggers the dependency injection mechanism when found.
+    /// </summary>
+    /// <param name="packedScene">The packed scene to instantiate.</param>
+    /// <returns>The created node, with its dependencies satisfied.</returns>
+    Node Instantiate(PackedScene packedScene);
+
+    /// <summary>
+    /// Instantiate a packed scene, just like <see cref="PackedScene.Instantiate{T}"/>, but also looks for a scope between the top level children and triggers the dependency injection mechanism when found.
+    /// </summary>
+    /// <param name="packedScene">The packed scene to instantiate.</param>
+    /// <returns>The created node, with its dependencies satisfied.</returns>
+    T Instantiate<T>(PackedScene packedScene) where T : Node;
+}