Update: UseOcclusionV2 - simplify toggling invis
- when enabling invis, notify occlusion tracking that we destroyed entity on subscriber's end
- when disabling invis, skip sending snapshots - occlusion will handle it
Halfway to remove the constant hashSet.Remove calls in GatherPairs loop
Tests: UsePlayerUpdateJobs 2, toggled invis in front of player. went invis, flew outside network range, flew back, disabled invis - spawned correctly.