Add mapping editor (#23427)

* Add mapping editor (#757)

* Remove mapping actions, never again

* Cleanup actions system

* Jarvis, remove all references to CM14

* Fix InventoryUIController crashing when an InventoryGui is not found

* Rename mapping1 to mapping

* Clean up context calls

* Add doc comments

* Add delegate for hiding decals in the mapping screen

* Jarvis mission failed

* a

* Add test

* Fix not flushing save stream in mapping manager

* change

* Fix verbs

* fixes

* localise

---------

Co-authored-by: DrSmugleaf <DrSmugleaf@users.noreply.github.com>
Co-authored-by: metalgearsloth <31366439+metalgearsloth@users.noreply.github.com>
Co-authored-by: metalgearsloth <comedian_vs_clown@hotmail.com>
Co-authored-by: Pieter-Jan Briers <pieterjan.briers+git@gmail.com>

Content.Client/Mapping/MappingDoNotMeasure.xaml.cs

@@ -0,0 +1,21 @@
+using System.Numerics;
+using Robust.Client.AutoGenerated;
+using Robust.Client.UserInterface;
+using Robust.Client.UserInterface.XAML;
+
+namespace Content.Client.Mapping;
+
+[GenerateTypedNameReferences]
+public sealed partial class MappingDoNotMeasure : Control
+{
+    public MappingDoNotMeasure()
+    {
+        RobustXamlLoader.Load(this);
+    }
+
+    protected override Vector2 MeasureOverride(Vector2 availableSize)
+    {
+        return Vector2.Zero;
+    }
+}
+