Deprecate LiquidCultureAccessor to avoid breaking changes

src/OrchardCore/OrchardCore.DisplayManagement.Liquid/LiquidCultureAccessor.cs

@@ -0,0 +1,9 @@
+namespace OrchardCore.Liquid;
+
+/// <summary>
+/// This is a placeholder class that allows modules to extend the `Culture` property in the current Liquid scope.
+/// </summary>
+[Obsolete("This class is obsolete and will be removed in a future version. Use the `Culture` property in the current Liquid scope instead.", error: true)]
+public class LiquidCultureAccessor
+{
+}