add benchmark fixtures

Add benchmark fixtures that contain implementation of popular algorithms + large file

Signed-off-by: lwsanty <[email protected]>

Author: lwsanty

fixtures/bench_accumulator_factory.cs

@@ -0,0 +1,17 @@
+using System;
+
+class Program
+{
+    static Func<dynamic, dynamic> Foo(dynamic n)
+    {
+        return i => n += i;
+    }
+
+    static void Main(string[] args)
+    {
+        var x = Foo(1);
+        x(5);
+        Foo(3);
+        Console.WriteLine(x(2.3));
+    }
+}