Command status

src/Core/FileTime.Core/Command/ICommand.cs

@@ -1,10 +1,14 @@
+using AsyncEvent;
 using FileTime.Core.Timeline;
 
 namespace FileTime.Core.Command
 {
     public interface ICommand
     {
+        string DisplayLabel { get; }
         Task<CanCommandRun> CanRun(PointInTime startPoint);
         Task<PointInTime> SimulateCommand(PointInTime startPoint);
+        int Progress { get; }
+        AsyncEventHandler ProgressChanged { get; }
     }
 }