fixed sln change and moved options to seperate file

MQTTnet.sln

@@ -41,9 +41,6 @@ EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "MQTTnet.Benchmarks", "Tests\MQTTnet.Benchmarks\MQTTnet.Benchmarks.csproj", "{998D04DD-7CB0-45F5-A393-E2495C16399E}"
 EndProject
 Global
-	GlobalSection(Performance) = preSolution
-		HasPerformanceSessions = true
-	EndGlobalSection
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
 		Debug|ARM = Debug|ARM

Tests/MQTTnet.Benchmarks/AllowNonOptimized.cs

@@ -0,0 +1,23 @@
+using System.Linq;
+using BenchmarkDotNet.Configs;
+using BenchmarkDotNet.Jobs;
+using BenchmarkDotNet.Validators;
+
+namespace MQTTnet.Benchmarks
+{
+    /// <summary>
+    /// this options may be used to run benchmarks in debugmode and attach a performance profiler
+    /// https://benchmarkdotnet.org/Configs/Configs.htm
+    /// </summary>
+    public class AllowNonOptimized : ManualConfig
+    {
+        public AllowNonOptimized()
+        {
+            Add(JitOptimizationsValidator.DontFailOnError); // ALLOW NON-OPTIMIZED DLLS
+            Add(DefaultConfig.Instance.GetLoggers().ToArray()); // manual config has no loggers by default
+            Add(DefaultConfig.Instance.GetExporters().ToArray()); // manual config has no exporters by default
+            Add(DefaultConfig.Instance.GetColumnProviders().ToArray()); // manual config has no columns by default
+            Add(Job.InProcess);
+        }
+    }
+}

Tests/MQTTnet.Benchmarks/ChannelAdapterBenchmark.cs

@@ -1,9 +1,4 @@
 using BenchmarkDotNet.Attributes;
-using BenchmarkDotNet.Attributes.Exporters;
-using BenchmarkDotNet.Attributes.Jobs;
-using BenchmarkDotNet.Configs;
-using BenchmarkDotNet.Jobs;
-using BenchmarkDotNet.Validators;
 using MQTTnet.Adapter;
 using MQTTnet.Core.Internal;
 using MQTTnet.Diagnostics;
@@ -11,27 +6,11 @@ using MQTTnet.Internal;
 using MQTTnet.Packets;
 using MQTTnet.Serializer;
 using System;
-using System.Collections.Generic;
 using System.IO;
-using System.Linq;
-using System.Text;
 using System.Threading;
-using System.Threading.Tasks;
 
 namespace MQTTnet.Benchmarks
 {
-    public class AllowNonOptimized : ManualConfig
-    {
-        public AllowNonOptimized()
-        {
-            Add(JitOptimizationsValidator.DontFailOnError); // ALLOW NON-OPTIMIZED DLLS
-            Add(DefaultConfig.Instance.GetLoggers().ToArray()); // manual config has no loggers by default
-            Add(DefaultConfig.Instance.GetExporters().ToArray()); // manual config has no exporters by default
-            Add(DefaultConfig.Instance.GetColumnProviders().ToArray()); // manual config has no columns by default
-            Add(Job.InProcess);
-        }
-    }
-
     [MemoryDiagnoser]
     public class ChannelAdapterBenchmark
     {