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/Climbing/SharedClimbingComponent.cs

@@ -1,19 +1,19 @@
 #nullable enable
 using System;
 using Content.Shared.ActionBlocker;
-using Content.Shared.NetIDs;
 using Content.Shared.Physics;
 using Robust.Shared.GameObjects;
+using Robust.Shared.GameStates;
 using Robust.Shared.Physics;
 using Robust.Shared.Serialization;
 using Robust.Shared.ViewVariables;
 
 namespace Content.Shared.Climbing
 {
+    [NetworkedComponent()]
     public abstract class SharedClimbingComponent : Component, IActionBlocker
     {
         public sealed override string Name => "Climbing";
-        public sealed override uint? NetID => ContentNetIDs.CLIMBING;
 
         protected bool IsOnClimbableThisFrame
         {
@@ -99,7 +99,7 @@ namespace Content.Shared.Climbing
         [Serializable, NetSerializable]
         protected sealed class ClimbModeComponentState : ComponentState
         {
-            public ClimbModeComponentState(bool climbing, bool isTransitioning) : base(ContentNetIDs.CLIMBING)
+            public ClimbModeComponentState(bool climbing, bool isTransitioning)
             {
                 Climbing = climbing;
                 IsTransitioning = isTransitioning;