Basic AHelp Panel, Ported & Fixed (#4776)

* Graft from https://github.com/space-wizards/space-station-14/pull/3049

* 'openahelp' command

* Add AHelp into escape menu

* Add a way to ahelp a player from the kick window

* bwoink: XAMLify, bugfix, etc.

* Rename the kick/bwoink window the Player Actions Panel

* Add the bwoink sound y'all know and love

adminhelp.ogg taken from d775e1ac80/sound/effects/adminhelp.ogg
 (available in master, therefore see master license: "All assets including icons and sound are under a Creative Commons 3.0 BY-SA license unless otherwise indicated.")
 "Changed the adminhelpsound to some creative commons sound I pinched. Until somebody can get a better one. I'm sick of MAAAAAAAAOOOOOOW."
 Actual source is https://freesound.org/people/martian/sounds/19261/ (CC0)
 The sound had been reversed and the volume altered.

* Actually play the bwoink sound on receiving an ahelp that you didn't send

Content.Client/Commands/OpenAHelpCommand.cs

@@ -0,0 +1,45 @@
+using System;
+using Content.Client.Administration;
+using Content.Shared.Body.Mechanism;
+using Robust.Client.Console;
+using Robust.Client.GameObjects;
+using Robust.Shared.Console;
+using Robust.Shared.Network;
+using Robust.Shared.Containers;
+using Robust.Shared.GameObjects;
+using Robust.Shared.IoC;
+
+namespace Content.Client.Commands
+{
+    public class OpenAHelpCommand : IConsoleCommand
+    {
+        public string Command => "openahelp";
+        public string Description => $"Opens AHelp channel for a given NetUserID, or your personal channel if none given.";
+        public string Help => $"{Command} [<netuserid>]";
+
+        public void Execute(IConsoleShell shell, string argStr, string[] args)
+        {
+            if (args.Length >= 2)
+            {
+                shell.WriteLine(Help);
+                return;
+            }
+            if (args.Length == 0)
+            {
+                EntitySystem.Get<BwoinkSystem>().EnsureWindowForLocalPlayer();
+            }
+            else
+            {
+                if (Guid.TryParse(args[0], out var guid))
+                {
+                    EntitySystem.Get<BwoinkSystem>().EnsureWindow(new NetUserId(guid));
+                }
+                else
+                {
+                    shell.WriteLine("Bad GUID!");
+                    return;
+                }
+            }
+        }
+    }
+}