service: refactor server architecture

Converts services to have their own processes

src/core/hle/service/ns/ns.h

@@ -117,8 +117,7 @@ private:
     }
 };
 
-/// Registers all NS services with the specified service manager.
-void InstallInterfaces(SM::ServiceManager& service_manager, Core::System& system);
+void LoopProcess(Core::System& system);
 
 } // namespace NS
 } // namespace Service