Id[entity] 2.0 (real) (#9612)

* starter API

* network ID cards

* Port more stuff from old identity

* Re-implement identity representation + name updating

* move

* proper name returning for `IdentityName`

* move everything important to server, give in to  temptation

* shared / server / client split sadly. move ensure to shared and spawn to server

* identity update queueing + identityblocker

* fixes

* and just like that it's usable for admins

* huge identity pass

* pass dos

* jesus christ

* figs :D

* fuck u

* fix bad merge.

Co-authored-by: Moony <moonheart08@users.noreply.github.com>

Content.Shared/IdentityManagement/SharedIdentitySystem.cs

@@ -0,0 +1,28 @@
+using Content.Shared.IdentityManagement.Components;
+using Robust.Shared.Containers;
+
+namespace Content.Shared.IdentityManagement;
+
+public abstract class SharedIdentitySystem : EntitySystem
+{
+    [Dependency] private readonly SharedContainerSystem _container = default!;
+    private static string SlotName = "identity";
+
+    public override void Initialize()
+    {
+        base.Initialize();
+
+        SubscribeLocalEvent<IdentityComponent, ComponentInit>(OnComponentInit);
+        SubscribeLocalEvent<IdentityBlockerComponent, SeeIdentityAttemptEvent>(OnSeeIdentity);
+    }
+
+    private void OnSeeIdentity(EntityUid uid, IdentityBlockerComponent component, SeeIdentityAttemptEvent args)
+    {
+        args.Cancel();
+    }
+
+    protected virtual void OnComponentInit(EntityUid uid, IdentityComponent component, ComponentInit args)
+    {
+        component.IdentityEntitySlot = _container.EnsureContainer<ContainerSlot>(uid, SlotName);
+    }
+}