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.Shared/Decals/DecalPrototype.cs

@@ -1,10 +1,11 @@
 using Robust.Shared.Prototypes;
+using Robust.Shared.Serialization.TypeSerializers.Implementations.Custom.Prototype.Array;
 using Robust.Shared.Utility;
 
 namespace Content.Shared.Decals
 {
     [Prototype("decal")]
-    public sealed partial class DecalPrototype : IPrototype
+    public sealed partial class DecalPrototype : IPrototype, IInheritingPrototype
     {
         [IdDataField] public string ID { get; } = null!;
         [DataField("sprite")] public SpriteSpecifier Sprite { get; private set; } = SpriteSpecifier.Invalid;
@@ -33,5 +34,13 @@ namespace Content.Shared.Decals
         /// </summary>
         [DataField]
         public bool DefaultSnap = true;
+
+        [ParentDataField(typeof(AbstractPrototypeIdArraySerializer<DecalPrototype>))]
+        public string[]? Parents { get; }
+
+        [NeverPushInheritance]
+        [AbstractDataField]
+        public bool Abstract { get; }
+
     }
 }