Add benchmark support using -b

Days/Day6.cs

@@ -6,7 +6,7 @@ public class Day6 : Day
 {
     public override int Number => 6;
     public override string Name => "Tuning Trouble";
-    public override void RunPart1()
+    public override void RunPart1(bool display = true)
     {
         int position = 0;
 
@@ -30,10 +30,13 @@ public class Day6 : Day
             charStream.Dequeue();
         }
 
-        AnsiConsole.MarkupLine($"[green]Position of start-of-packet marker is: [yellow]{position}[/][/]");
+        if (display)
+        {
+            AnsiConsole.MarkupLine($"[green]Position of start-of-packet marker is: [yellow]{position}[/][/]");
+        }
     }
 
-    public override void RunPart2()
+    public override void RunPart2(bool display = true)
     {
         const int length = 14;
         int position = 0;
@@ -48,7 +51,7 @@ public class Day6 : Day
         for (int i = length - 1; i < Input.Length; i++)
         {
             charStream.Enqueue(Input[i]);
-            
+
             // Check if all 14 chars are different
             if (charStream.ToHashSet().Count == charStream.Count)
             {
@@ -59,7 +62,10 @@ public class Day6 : Day
             charStream.Dequeue();
         }
 
-        AnsiConsole.MarkupLine($"[green]Position of start-of-message marker is: [yellow]{position}[/][/]");
+        if (display)
+        {
+            AnsiConsole.MarkupLine($"[green]Position of start-of-message marker is: [yellow]{position}[/][/]");
+        }
     }
 
     #region Input