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/Tag/TagComponentState.cs

@@ -1,6 +1,5 @@
 #nullable enable
 using System;
-using Content.Shared.NetIDs;
 using Robust.Shared.GameObjects;
 using Robust.Shared.Serialization;
 
@@ -9,7 +8,7 @@ namespace Content.Shared.Tag
     [Serializable, NetSerializable]
     public class TagComponentState : ComponentState
     {
-        public TagComponentState(string[] tags) : base(ContentNetIDs.TAG)
+        public TagComponentState(string[] tags)
         {
             Tags = tags;
         }