add ToHashList extension method

Author: benjaminiserman

WingSharpExtensions/HashListExtension.cs

@@ -0,0 +1,8 @@
+namespace WingSharpExtensions;
+
+using System.Collections.Generic;
+
+public static class HashListExtension
+{
+	public static HashList<T> ToHashList<T>(this IEnumerable<T> enumerable) => new(enumerable);
+}