public PreviewCommand(
     IEngineSettingsDictionary engineSettings,
     IConfigurationRoot configurationRoot,
     IServiceCollection serviceCollection,
     IBootstrapper bootstrapper)
     : base(engineSettings, configurationRoot, serviceCollection, bootstrapper)
 {
 }
 protected EngineCommand(
     IEngineSettingsDictionary engineSettings,
     IConfigurationRoot configurationRoot,
     IServiceCollection serviceCollection,
     IBootstrapper bootstrapper)
     : base(serviceCollection)
 {
     EngineSettings    = engineSettings;
     ConfigurationRoot = configurationRoot;
     ServiceCollection = serviceCollection;
     Bootstrapper      = bootstrapper;
 }