adding a null processor for timing

Modules/NullProcessor.cs

@@ -0,0 +1,25 @@
+namespace Ovation.FasterQC.Net
+{
+    public class NullProcessor : IQcModule
+    {
+        private ulong sequenceCount;
+
+        public string Name => "nullProcessor";
+
+        public string Description => "Runs a minimal processor";
+
+        public bool IsEnabledForAll => false;
+
+        public object Data => sequenceCount;
+
+        public void ProcessSequence(Sequence sequence)
+        {
+            sequenceCount++;
+        }
+
+        public void Reset()
+        {
+            sequenceCount = 0;
+        }
+    }
+}

Program.cs

@@ -30,6 +30,7 @@ private static void Main(string[] args)
                     config.AutoHelp = true;
                     config.AutoVersion = true;
                     config.CaseInsensitiveEnumValues = true;
+                    config.EnableDashDash = false;
                 }
             );
 
@@ -76,6 +77,8 @@ private void Run()
             On(Settings.ShowProgress, () => progressBar = new TimedSequenceProgressBar(sequenceReader));
             On(Settings.Verbose, () => Console.Error.WriteLine($"Processing {Settings.InputFilename}..."));
 
+            var started = DateTime.UtcNow;
+
             while (sequenceReader.SequencesRead < Settings.ReadLimit && sequenceReader.ReadSequence(out Sequence? sequence))
             {
                 ArgumentNullException.ThrowIfNull(sequence);
@@ -95,14 +98,21 @@ private void Run()
                 });
             }
 
+            var ended = DateTime.UtcNow;
+            var elapsed = ended.Subtract(started).TotalSeconds;
+
             Dictionary<string, object>? results = new()
             {
                 ["_metadata"] = new
                 {
                     _modules = Settings.ModuleNames,
                     _inputFilename = Settings.InputFilename,
                     _outputFilename = string.IsNullOrWhiteSpace(Settings.OutputFilename) ? "STDOUT" : Settings.OutputFilename,
-                    _sequences = sequenceReader.SequencesRead
+                    _sequences = sequenceReader.SequencesRead,
+                    _started = started,
+                    _ended = ended,
+                    _elapsed = elapsed,
+                    _rate = (double)sequenceReader.SequencesRead / (double)elapsed
                 }
             };