Add pointing (#1435)

* Add pointing keybind and simple message

* Add turning the player when pointing

* Add pointing arrow

* Make the popup message appear on the pointing entity

* Add pointing to tiles and space and proper grammar

* Move pointing bind from HandsSystem to PointingSystem

* Add more messages for pointing depending on the viewer perspective

* Fix non nullable reference type

* Serialize pointing arrow duration

* Serialize pointing arrow step and add summaries

* Make arrow speed serializable and make it depend on frame time

* Add 0.2 second delay between pointings

* Add pointing arrow yaml examples

* Add the ability for pointing arrows to be rogue

* Remove rogue package reference

* Add point to verb

https://cdn.discordapp.com/attachments/313107470031650816/735268651636228197/unknown.png

* Add shift middle clicking an entity in the verb menu to point at it

* Add VV to PointingArrowComponent

* Increase pointing delay from 0.2 to 0.5 seconds

* Address reviews

* Fix nullability errors

* Separate pointing and rogue pointing code

* Fix rogue pointing arrow visuals

* Made rogue pointing arrow rotation adjustment readable for mortals

* Make rogue pointing arrows less destructive

* Cleanup more of the rogue pointing arrow code

Content.Server/GameObjects/EntitySystems/HandsSystem.cs

@@ -20,6 +20,8 @@ using Content.Server.GameObjects;
 using Content.Server.GameObjects.Components;
 using Content.Server.GameObjects.Components.Items.Storage;
 using Content.Server.GameObjects.EntitySystems.Click;
+using Content.Shared.Interfaces;
+using Robust.Shared.Maths;
 
 namespace Content.Server.Interfaces.GameObjects.Components.Interaction
 {
@@ -47,8 +49,7 @@ namespace Content.Server.Interfaces.GameObjects.Components.Interaction
                 .Bind(ContentKeyFunctions.ActivateItemInHand, InputCmdHandler.FromDelegate(HandleActivateItem))
                 .Bind(ContentKeyFunctions.ThrowItemInHand, new PointerInputCmdHandler(HandleThrowItem))
                 .Bind(ContentKeyFunctions.SmartEquipBackpack, InputCmdHandler.FromDelegate(HandleSmartEquipBackpack))
-                .Bind(ContentKeyFunctions.SmartEquipBelt, InputCmdHandler.FromDelegate(HandleSmartEquipBelt))
-                .Register<HandsSystem>();
+                .Bind(ContentKeyFunctions.SmartEquipBelt, InputCmdHandler.FromDelegate(HandleSmartEquipBelt)).Register<HandsSystem>();
         }
 
         /// <inheritdoc />