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/Singularity/Components/SharedSingularityComponent.cs

@@ -1,16 +1,16 @@
 using System;
-using Content.Shared.NetIDs;
 using Robust.Shared.GameObjects;
+using Robust.Shared.GameStates;
 using Robust.Shared.Serialization;
 using Robust.Shared.Serialization.Manager.Attributes;
 using Robust.Shared.ViewVariables;
 
 namespace Content.Shared.Singularity.Components
 {
+    [NetworkedComponent]
     public abstract class SharedSingularityComponent : Component
     {
         public override string Name => "Singularity";
-        public override uint? NetID => ContentNetIDs.SINGULARITY;
 
         [DataField("deleteFixture")] public string? DeleteFixtureId { get; } = default;
 
@@ -36,7 +36,7 @@ namespace Content.Shared.Singularity.Components
     {
         public int Level { get; }
 
-        public SingularityComponentState(int level) : base(ContentNetIDs.SINGULARITY)
+        public SingularityComponentState(int level)
         {
             Level = level;
         }