ECS NPCs (#9941)

* ECS

* A

* parity

* Remove dummy update

* abs

* thanks rider

Content.Server/AI/Components/ActiveNPCComponent.cs

@@ -0,0 +1,7 @@
+namespace Content.Server.AI.Components;
+
+/// <summary>
+/// Added to NPCs that are actively being updated.
+/// </summary>
+[RegisterComponent]
+public sealed class ActiveNPCComponent : Component {}