added yarn spinner package

NightclubArcadia/Packages/dev.yarnspinner.unity/Runtime/LineProviders/UnityLocalisedLineProvider.cs

@@ -0,0 +1,17 @@
+/*
+Yarn Spinner is licensed to you under the terms found in the file LICENSE.md.
+*/
+
+#nullable enable
+
+namespace Yarn.Unity.UnityLocalization
+{
+    // This partial declaration exists to ensure that Unity is able to work with
+    // this class, because MonoBehaviour types are required to be defined in a
+    // file whose name matches the type's name. The actual definition of
+    // UnityLocalisedLineProvider is found in either
+    // UnityLocalisedLineProvider.Installed.cs (if Unity Localization is
+    // installed), or UnityLocalisedLineProvider.NotInstalled.cs (if not).
+    public sealed partial class UnityLocalisedLineProvider : LineProviderBehaviour { }
+}
+