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/Hands/Components/SharedHandsComponent.cs

@@ -5,9 +5,9 @@ using System.Diagnostics.CodeAnalysis;
 using System.Linq;
 using Content.Shared.ActionBlocker;
 using Content.Shared.Interaction;
-using Content.Shared.NetIDs;
 using Robust.Shared.Containers;
 using Robust.Shared.GameObjects;
+using Robust.Shared.GameStates;
 using Robust.Shared.IoC;
 using Robust.Shared.Log;
 using Robust.Shared.Map;
@@ -19,12 +19,11 @@ using Robust.Shared.ViewVariables;
 
 namespace Content.Shared.Hands.Components
 {
+    [NetworkedComponent()]
     public abstract class SharedHandsComponent : Component, ISharedHandsComponent
     {
         public sealed override string Name => "Hands";
 
-        public sealed override uint? NetID => ContentNetIDs.HANDS;
-
         public event Action? OnItemChanged; //TODO: Try to replace C# event
 
         /// <summary>
@@ -867,7 +866,7 @@ namespace Content.Shared.Hands.Components
         public HandState[] Hands { get; }
         public string? ActiveHand { get; }
 
-        public HandsComponentState(HandState[] hands, string? activeHand = null) : base(ContentNetIDs.HANDS)
+        public HandsComponentState(HandState[] hands, string? activeHand = null)
         {
             Hands = hands;
             ActiveHand = activeHand;