Make control group hotkeys configurable

- Split control groups management to its own interface
- Add hotkeys for selecting, creating, adding to and combining with control groups
- Add a ControlGroups widget to manage the player interaction

OpenRA.Mods.Common/Widgets/Logic/Ingame/ControlGroupLogic.cs

@@ -1,36 +0,0 @@
-#region Copyright & License Information
-/*
- * Copyright 2007-2021 The OpenRA Developers (see AUTHORS)
- * This file is part of OpenRA, which is free software. It is made
- * available to you under the terms of the GNU General Public License
- * as published by the Free Software Foundation, either version 3 of
- * the License, or (at your option) any later version. For more
- * information, see COPYING.
- */
-#endregion
-
-using OpenRA.Graphics;
-using OpenRA.Widgets;
-
-namespace OpenRA.Mods.Common.Widgets.Logic
-{
-	public class ControlGroupLogic : ChromeLogic
-	{
-		[ObjectCreator.UseCtor]
-		public ControlGroupLogic(Widget widget, World world, WorldRenderer worldRenderer)
-		{
-			var keyhandler = widget.Get<LogicKeyListenerWidget>("CONTROLGROUP_KEYHANDLER");
-			keyhandler.AddHandler(e =>
-			{
-				if (e.Event == KeyInputEvent.Down && e.Key >= Keycode.NUMBER_0 && e.Key <= Keycode.NUMBER_9)
-				{
-					var group = (int)e.Key - (int)Keycode.NUMBER_0;
-					world.Selection.DoControlGroup(world, worldRenderer, group, e.Modifiers, e.MultiTapCount);
-					return true;
-				}
-
-				return false;
-			});
-		}
-	}
-}

OpenRA.Mods.Common/Widgets/Logic/Ingame/Hotkeys/RemoveFromControlGroupHotkeyLogic.cs

@@ -38,7 +38,7 @@ namespace OpenRA.Mods.Common.Widgets.Logic.Ingame
 				.ToArray();
 
 			foreach (var a in selectedActors)
-				selection.RemoveFromControlGroup(a);
+				world.ControlGroups.RemoveFromControlGroup(a);
 
 			return true;
 		}