added yarn spinner package

NightclubArcadia/Packages/dev.yarnspinner.unity/Runtime/Commands/ICommandDispatcher.cs

@@ -0,0 +1,21 @@
+/*
+Yarn Spinner is licensed to you under the terms found in the file LICENSE.md.
+*/
+
+using System;
+using System.Collections.Generic;
+using UnityEngine;
+
+#nullable enable
+
+namespace Yarn.Unity
+{
+    interface ICommandDispatcher : IActionRegistration
+    {
+        CommandDispatchResult DispatchCommand(string command, MonoBehaviour coroutineHost);
+
+        void SetupForProject(YarnProject yarnProject);
+
+        IEnumerable<ICommand> Commands { get; }
+    }
+}