A whole marathon of Indirect Instancing changes: - Schedule all jobs at the beginning of LateUpdate() for better worker utilisation. - Further improve scheduling behavior by modeling actual dependencies between jobs using writes_to_* and reads_from_* handles. - Allow instance reordering and command aggregation to run in paralell to give even more flexibility to the scheduler. - Run the debug overlay (where possible) in parallel with the jobs to improve performance - Avoid garbage allocation when scheduling the frustum culling job. (GeometryUtility.CalculateFrustumPlanes) - Schedule all jobs using ScheduleByRef. - Correctly set `[ReadOnly]` and `readonly` for all jobs to help Burst as much as possible. - Make batch size tunable: `indirect_instancing.batches_per_worker` - Add somewhat automatic instrumentation to CrudeProfiler via `using` statements. - Add ProfilerMarker to mimic what Unity 6 is doing with `using` statements. (Still need to verify it this compiles out properly.) - Add more profiler instrumentation. - Rename a ton of things for clarity. - Remove CommandBuffer. We won't need it where we're going.