Event-driven dialog queue, story flag command, mod unit tests

Push-based event chains, runtime fixes (single end, goto lifecycle, if,
busy box, held delay, empty options, timed/animated/effect actions), the
'flag name value' DSL command, autoplay --dialogs=N, 19 mod unit tests.

src/Scenarios/Impls/EndCommandStrategy.cs

@@ -1,6 +1,6 @@
-using System.Collections.Generic;
-using Cthangover.Core.Localization;
-using Cthangover.Mods.Dialog;
+using System.Collections.Generic;
+using Cthangover.Core.Localization;
+using Cthangover.Mods.Dialog;
 using Cthangover.Core.UI;
 using Cthangover.Mods.Interface.Base.Lists;
 using Cthangover.Core.UI.Dialog;
@@ -9,25 +9,25 @@ using Cthangover.Core.UI.Executable;
 using Cthangover.Core.Scenarios;
 using Cthangover.Core.Scenes;
 using Cthangover.Core.Interactive;
-
-namespace Cthangover.Mods.Dialog.Scenarios
-{
-    /// <summary>
-    /// Handles the <c>end</c> DSL command. Marks the end of the dialog sequence,
-    /// terminating execution of the current scenario. Typically used at the final
-    /// line of a scenario script to signal the dialog engine to close or transition.
-    /// </summary>
-    public class EndCommandStrategy : IScenarioCommandStrategy, IScenarioCommandSpec
-    {
-        /// <inheritdoc/>
-        public string Command => "end";
-        /// <inheritdoc/>
-        public int MaxPositional => 0;
-
-        /// <inheritdoc/>
-        public void Execute(DialogQueue dlg, List<string> positional, Dictionary<string, string> named, string arrowTarget, ILocalizationProvider locale)
-        {
-            dlg.End();
-        }
-    }
-}
+
+namespace Cthangover.Mods.Dialog.Scenarios
+{
+    /// <summary>
+    /// Handles the <c>end</c> DSL command. Marks the end of the dialog sequence,
+    /// terminating execution of the current scenario. Typically used at the final
+    /// line of a scenario script to signal the dialog engine to close or transition.
+    /// </summary>
+    public class EndCommandStrategy : IScenarioCommandStrategy, IScenarioCommandSpec
+    {
+        /// <inheritdoc/>
+        public string Command => "end";
+        /// <inheritdoc/>
+        public int MaxPositional => 0;
+
+        /// <inheritdoc/>
+        public void Execute(DialogQueue dlg, List<string> positional, Dictionary<string, string> named, string arrowTarget, ILocalizationProvider locale)
+        {
+            dlg.End();
+        }
+    }
+}