Gateway destinations (#21040)

* Gateway generation

* Gateway stuff

* gatewehs

* mercenaries

* play area

* Range fixes and tweaks

* weh

* Gateway UI polish

* Lots of fixes

* Knock some items off

* Fix dungeon spawning

Realistically we should probably be using a salvage job.

* wahwah

* wehvs

* expression

* weh

* eee

* a

* a

* WEH

* frfr

* Gatwey

* Fix gateway windows

* Fix gateway windows

* a

* a

* Better layer masking

* a

* a

* Noise fixes

* a

* Fix fractal calculations

* a

* More fixes

* Fixes

* Add layers back in

* Fixes

* namespaces and ftl

* Other TODO

* Fix distance

* Cleanup

* Fix test

Content.Client/Parallax/Commands/ShowBiomeCommand.cs

@@ -0,0 +1,22 @@
+using Robust.Client.Graphics;
+using Robust.Shared.Console;
+
+namespace Content.Client.Parallax.Commands;
+
+public sealed class ShowBiomeCommand : LocalizedCommands
+{
+    [Dependency] private readonly IOverlayManager _overlayMgr = default!;
+
+    public override string Command => "showbiome";
+    public override void Execute(IConsoleShell shell, string argStr, string[] args)
+    {
+        if (_overlayMgr.HasOverlay<BiomeDebugOverlay>())
+        {
+            _overlayMgr.RemoveOverlay<BiomeDebugOverlay>();
+        }
+        else
+        {
+            _overlayMgr.AddOverlay(new BiomeDebugOverlay());
+        }
+    }
+}