added yarn spinner package

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

@@ -0,0 +1,15 @@
+/*
+Yarn Spinner is licensed to you under the terms found in the file LICENSE.md.
+*/
+
+#nullable enable
+
+namespace Yarn.Unity.Attributes
+{
+    public class YarnEnumParameterAttribute: YarnParameterAttribute
+    {
+        public string Name { get; set; }
+
+        public YarnEnumParameterAttribute(string name) => Name = name;
+    }
+}