Kill Seperated Mindshield Icons (#25303)

* Unghettoify mindshield icons

Adds support for layers in status icons, through the StatusIconLayer enum and the new "layer" datafield. Defaults to the Base layer where functionally remains unchanged.

* TG icon for shield

probably better than the shitty one I made in paint

* forgor meta.json

I forgor

* Emo review

Co-authored-by: Nemanja <98561806+EmoGarbage404@users.noreply.github.com>

---------

Co-authored-by: Nemanja <98561806+EmoGarbage404@users.noreply.github.com>

Content.Shared/StatusIcon/StatusIconPrototype.cs

@@ -34,6 +34,12 @@ public partial class StatusIconData : IComparable<StatusIconData>
     {
         return Priority.CompareTo(other?.Priority ?? int.MaxValue);
     }
+
+    /// <summary>
+    /// The layer the icon is displayed on. Mod is drawn above Base. Base | Mod
+    /// </summary>
+    [DataField]
+    public StatusIconLayer Layer = StatusIconLayer.Base;
 }
 
 /// <summary>
@@ -63,3 +69,9 @@ public enum StatusIconLocationPreference : byte
     Left,
     Right,
 }
+
+public enum StatusIconLayer : byte
+{
+    Base,
+    Mod,
+}