ControlMob verb and command (#724)

* ControlMob verb and command, mobs have MindComponent by default

* Use IActorComponent instead of MindComponent for User entity.
Fixes using Control Mob while aghosting/visiting an entity.

* Use static Loc class

Content.Server/Administration/ControlMob.cs

@@ -0,0 +1,66 @@
+using Content.Server.GameObjects.Components.Mobs;
+using Content.Server.Mobs;
+using Content.Server.Players;
+using Robust.Server.Interfaces.Console;
+using Robust.Server.Interfaces.Player;
+using Robust.Shared.GameObjects;
+using Robust.Shared.Interfaces.GameObjects;
+using Robust.Shared.IoC;
+using Robust.Shared.Localization;
+
+namespace Content.Server.Administration
+{
+    class ControlMob : IClientCommand
+    {
+        public string Command => "controlmob";
+        public string Description => Loc.GetString("Transfers user mind to the specified entity.");
+        public string Help => Loc.GetString("Usage: controlmob <mobUid>.");
+
+        public void Execute(IConsoleShell shell, IPlayerSession player, string[] args)
+        {
+            if (player == null)
+            {
+                shell.SendText((IPlayerSession) null, "Server cannot do this.");
+                return;
+            }
+
+            if (args.Length != 1)
+            {
+                shell.SendText(player, Loc.GetString("Wrong number of arguments."));
+                return;
+            }
+
+
+            var mind = player.ContentData().Mind;
+            var entityManager = IoCManager.Resolve<IEntityManager>();
+
+            if (!int.TryParse(args[0], out var targetId))
+            {
+                shell.SendText(player, Loc.GetString("Argument must be a number."));
+                return;
+            }
+
+            var eUid = new EntityUid(targetId);
+
+            if (!eUid.IsValid() || !entityManager.EntityExists(eUid))
+            {
+                shell.SendText(player, Loc.GetString("Invalid entity ID."));
+                return;
+            }
+
+            var target = entityManager.GetEntity(eUid);
+            if (!target.TryGetComponent(out MindComponent mindComponent))
+            {
+                shell.SendText(player, Loc.GetString("Target entity is not a mob!"));
+                return;
+            }
+
+            if(mind.IsVisitingEntity)
+                mind.UnVisit();
+
+            mindComponent.Mind?.TransferTo(null);
+            mind.TransferTo(target);
+
+        }
+    }
+}