Add Alt-click functionality (#4497)

* Fix ItemSlot Bug

* Add Alt-use Key

* Fix TransferAmount window bug

* Alt-click functionality

* Added AltInteract verbs

* Add new verbs

* verb icons

* Changed Comments

* Change Comments

* Fix disposal verbs

* Changed Get...() to Get...OrNull()

* Changed alt-interact combat behaviour

* Update verb icons

* Inventory interact event

* Add Alt+E secondary binding

* Add alt-z keybinding

* Rename AltUse -> AltActivateItemInWorld

Content.Server/Items/ItemComponent.cs

@@ -44,6 +44,7 @@ namespace Content.Server.Items
                 }
 
                 data.Text = Loc.GetString("pick-up-verb-get-data-text");
+                data.IconTexture = "/Textures/Interface/VerbIcons/pickup.svg.192dpi.png";
             }
 
             protected override void Activate(IEntity user, ItemComponent component)