* Adds load testing macros (#66178)
Adds a macro that consumes cpu up to some tick limit
Adds a define that uses said macro to leave verb processing just its
reserve of the tick
Adds a second subdefine that forces verb processing into total overtime
Mimicing the worst case scenario around maptick spikes
* Adds load testing macros
Co-authored-by: LemonInTheDark <58055496+LemonInTheDark@users.noreply.github.com>
