Pow3r: stage 1 (#4208)

Co-authored-by: 20kdc <asdd2808@gmail.com>

Pow3r/LinqHelper.cs

@@ -0,0 +1,16 @@
+using System;
+using System.Collections.Generic;
+
+namespace Pow3r
+{
+    public static class LinqHelper
+    {
+        public static void ForEach<T>(this IEnumerable<T> enumerable, Action<T> action)
+        {
+            foreach (var item in enumerable)
+            {
+                action(item);
+            }
+        }
+    }
+}