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/Administration/Verbs/AdminAddReagentVerb.cs

@@ -43,6 +43,7 @@ namespace Content.Server.Administration.Verbs
             }
 
             data.Text = Loc.GetString("admin-add-reagent-verb-get-data-text");
+            data.IconTexture = "/Textures/Interface/VerbIcons/spill.svg.192dpi.png";
             data.CategoryData = VerbCategories.Debug;
             data.Visibility = VerbVisibility.Invisible;