Add doors to the station map (#23639)

* Add doors to the navmap

* tweaksies

* gah

* draw primitive

* draw primitive? at least take me out to dinner first!

* Update Content.Client/Pinpointer/UI/NavMapControl.cs

* casualties

---------

Co-authored-by: metalgearsloth <31366439+metalgearsloth@users.noreply.github.com>
Co-authored-by: metalgearsloth <comedian_vs_clown@hotmail.com>

Content.Shared/Pinpointer/SharedNavMapSystem.cs

@@ -37,8 +37,13 @@ public abstract class SharedNavMapSystem : EntitySystem
         public Dictionary<Vector2i, int> TileData = new();
 
         public List<NavMapBeacon> Beacons = new();
+
+        public List<NavMapAirlock> Airlocks = new();
     }
 
     [Serializable, NetSerializable]
     public readonly record struct NavMapBeacon(Color Color, string Text, Vector2 Position);
+
+    [Serializable, NetSerializable]
+    public readonly record struct NavMapAirlock(Vector2 Position);
 }