Feature Request: Add ability to automatically hide metric columns if value is not set

[filzrev]

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When using ThreadingDiagnoser/ExceptionDiagnoser. Following metric columns are displayed always .

• Exceptions
• Completed Work Items
• Lock Contentions

Is it able to automatically hide these columns if all metric values are 0 ?.

It seems to be able to change behaviors by modifying following code.

• MetricColumn::IsAvailable
• IMetricDescriptor::GetIsAvailable

Excample benchmark code

 [ShortRunJob]
 [ThreadingDiagnoser]
 // [HideColumns(Column.CompletedWorkItems, Column.LockContentions, Column.Exceptions)]
 public class Benchmarks
 {
     [Benchmark]
     public void Benchmark()
     {
         Thread.Sleep(1);
     }
 }

Console Output

| Method    | Mean     | Error    | StdDev   | Exceptions | Completed Work Items | Lock Contentions |
|---------- |---------:|---------:|---------:|-----------:|---------------------:|-----------------:|
| Benchmark | 15.57 ms | 0.364 ms | 0.020 ms |          - |                    - |                - |