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/Gateway/UI/GatewayBoundUserInterface.cs

@@ -17,7 +17,8 @@ public sealed class GatewayBoundUserInterface : BoundUserInterface
     {
         base.Open();
 
-        _window = new GatewayWindow();
+        _window = new GatewayWindow(EntMan.GetNetEntity(Owner));
+
         _window.OpenPortal += destination =>
         {
             SendMessage(new GatewayOpenPortalMessage(destination));