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.Client/Entry/EntryPoint.cs

@@ -105,6 +105,7 @@ namespace Content.Client.Entry
             }
 
             IoCManager.BuildGraph();
+            factory.GenerateNetIds();
 
             IoCManager.Resolve<IClientAdminManager>().Initialize();
             IoCManager.Resolve<IParallaxManager>().LoadParallax();