Thruster/VThruster: Standardized effects into thrusterlib.lua
Over 4 years ago, WeltEnSTurm optimized the thruster's effects, limiting it to
just 1 shared ParticleEmitter, instead of a new one every client frame, and
fixing a bug where source wouldn't create any more ParticleEmitters.
This, among other fixes, never got into vthrusters.
Also, tidied up both cl_inits
VThrusters: Effects now originate from the end of the model
They didn't before because the "offset" was used to rotate the effect
So I added a new SetNormal networkedvar to VThrusters
Thrusters/VThrusters: We don't need to draw effects twice
Put an end to newlineGate (Thanks @AbigailBuccaneer!)
Merge pull request #359 from wiremod/thruster-client-optimizing

Vector Thruster client optimizing