Proposal to reduce non critical streamer updates

[Nyro5]

I made an experimental change in Client/mods/deathmatch/logic/CClientManager.cpp

It keeps player and vehicle streamers updated every frame but alternates objects LOD markers pickups and lights between frames

The goal is to reduce CPU work and improve frame time when many elements exist

This change is not fully tested or benchmarked yet so I want feedback before making a pull request

Things that need testing

FPS and frame time
Object and LOD streaming
Markers pickups and lights
Any visual delay or sync problems

streamer-optimization-upload.zip