introduce ManualConfig.CreateMinimumViable() method (#1582)

* add CreateMinimumViable method so users don't have to define logger and column provider every time

* update docs

Author: adamsitnik

docs/articles/configs/exporters.md

@@ -99,16 +99,17 @@ The CSV exporter and other compatible exporters may consume an instance of `ISum
 Example of CSV exporter configured to always use microseconds, kilobytes, and to render units only in column headers:
 
 ```cs
-var config = ManualConfig.Create(DefaultConfig.Instance);
-config.Add(new CsvExporter(
+var exporter = new CsvExporter(
     CsvSeparator.CurrentCulture,
-    new BenchmarkDotNet.Reports.SummaryStyle
-    {
-        PrintUnitsInHeader = true,
-        PrintUnitsInContent = false,
-        TimeUnit = BenchmarkDotNet.Horology.TimeUnit.Microsecond,
-        SizeUnit = BenchmarkDotNet.Columns.SizeUnit.KB
-    }));
+    new SummaryStyle(
+        cultureInfo: System.Globalization.CultureInfo.CurrentCulture,
+        printUnitsInHeader: true,
+        printUnitsInContent: false,
+        timeUnit: Perfolizer.Horology.TimeUnit.Microsecond,
+        sizeUnit: SizeUnit.KB
+    ));
+
+var config = ManualConfig.CreateMinimumViable().AddExporter(exporter);
 ```
 
 Excerpt from the resulting CSV file:

samples/BenchmarkDotNet.Samples/IntroCustomMono.cs

@@ -79,7 +79,7 @@ public class IntroCustomMonoFluentConfig
         public static void Run()
         {
             BenchmarkRunner.Run<IntroCustomMonoFluentConfig>(ManualConfig
-                .CreateEmpty()
+                .CreateMinimumViable()
                 .AddJob(Job.ShortRun.WithRuntime(new MonoRuntime(
                     "Mono x64", @"C:\Program Files\Mono\bin\mono.exe")))
                 .AddJob(Job.ShortRun.WithRuntime(new MonoRuntime(

src/BenchmarkDotNet/Configs/ManualConfig.cs

@@ -215,8 +215,20 @@ public void Add(IConfig config)
             Options |= config.Options;
         }
 
+        /// <summary>
+        /// Creates a completely EMPTY config with no predefined settings.
+        /// </summary>
+        /// <remarks>You should most probably use the <see cref="CreateMinimumViable"></see> method instead.</remarks>
         public static ManualConfig CreateEmpty() => new ManualConfig();
 
+        /// <summary>
+        /// Creates a minimum viable config with predefined columns provider and console logger.
+        /// </summary>
+        public static ManualConfig CreateMinimumViable()
+            => CreateEmpty()
+                .AddColumnProvider(DefaultColumnProviders.Instance)
+                .AddLogger(ConsoleLogger.Default);
+
         public static ManualConfig Create(IConfig config)
         {
             var manualConfig = new ManualConfig();

src/BenchmarkDotNet/Reports/SummaryStyle.cs

@@ -22,7 +22,7 @@ public class SummaryStyle : IEquatable<SummaryStyle>
         public TimeUnit TimeUnit { get; }
         [NotNull]
         public CultureInfo CultureInfo { get; }
-        
+
         public RatioStyle RatioStyle { get; }
 
         public SummaryStyle([CanBeNull] CultureInfo cultureInfo, bool printUnitsInHeader, SizeUnit sizeUnit, TimeUnit timeUnit, bool printUnitsInContent = true,