Add a debug overlay for accessreaders (#9681)

> didnt pjb have issues with doing the control stuff in an overlay and just wanted direct texture draw

I ended up doing dis.

Content.Server/Administration/Systems/AdminVerbSystem.Tools.cs

@@ -40,7 +40,7 @@ public sealed partial class AdminVerbSystem
 {
     [Dependency] private readonly AirlockSystem _airlockSystem = default!;
     [Dependency] private readonly StackSystem _stackSystem = default!;
-    [Dependency] private readonly AccessSystem _accessSystem = default!;
+    [Dependency] private readonly SharedAccessSystem _accessSystem = default!;
     [Dependency] private readonly HandsSystem _handsSystem = default!;
     [Dependency] private readonly QuickDialogSystem _quickDialog = default!;
     [Dependency] private readonly AdminTestArenaSystem _adminTestArenaSystem = default!;