Add dependabot

Author: feliwir

.github/dependabot.yml

@@ -0,0 +1,9 @@
+version: 2
+updates: 
+  # Enable version updates for nuget 
+  - package-ecosystem: "nuget"
+    # Look for NuGet dependency info from the `src` directory
+    directory: "/src/" 
+    # Check the nuget registry for updates every day (weekdays) schedule: 
+    schedule:
+      interval: "daily"

src/FixedMath.NET.Bench/Program.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Linq;
 using BenchmarkDotNet.Attributes;
 using BenchmarkDotNet.Running;
 
@@ -44,8 +45,17 @@ public void Atan()
         var actualF = Fix64.Atan(angle);
       }
     }
+
+    [Benchmark]
+    public void Atan2()
+    {
+      foreach (var angle in atanAngles)
+      {
+        var actualF = Fix64.Atan2(angle, angle);
+      }
+    }
   }
-  
+
   class Program
   {
     static void Main(string[] args)