Remove Static Component NetIds (#4247)

* Remove the unnecessary NetID property from ComponentState.

* Remove Component.NetworkSynchronizeExistence.

* Removed Component.NetID.

* Adds component netID automatic generation.

* Removed NetIdAttribute from serverside components with no corresponding clientside registration.

* Completely remove static NetIds.

* Renamed NetIDAttribute to NetworkedComponentAttribute.

* Add GenerateNetIds calls to client and server entry points.
Add test to make sure auto generated NetIds are identical.

* Component changes when rebasing that I am too lazy to rewrite into the branch.

Co-authored-by: Vera Aguilera Puerto <6766154+Zumorica@users.noreply.github.com>

Content.Shared/Cuffs/Components/SharedHandcuffComponent.cs

@@ -1,22 +1,22 @@
-#nullable enable
+#nullable enable
 using System;
-using Content.Shared.NetIDs;
 using Robust.Shared.GameObjects;
+using Robust.Shared.GameStates;
 using Robust.Shared.Serialization;
 
 namespace Content.Shared.Cuffs.Components
 {
+    [NetworkedComponent()]
     public abstract class SharedHandcuffComponent : Component
     {
         public override string Name => "Handcuff";
-        public override uint? NetID => ContentNetIDs.HANDCUFFS;
 
         [Serializable, NetSerializable]
         protected sealed class HandcuffedComponentState : ComponentState
         {
             public string? IconState { get; }
 
-            public HandcuffedComponentState(string? iconState) : base(ContentNetIDs.HANDCUFFS)
+            public HandcuffedComponentState(string? iconState)
             {
                 IconState = iconState;
             }