Add nu_star (collisionality) to post-processed outputs#2103

AndrewTKent wants to merge 2 commits intogoogle-deepmind:maingoogle-deepmind/torax:mainfrom

AndrewTKent:andrew/add-nu-star-output-v3AndrewTKent/torax:andrew/add-nu-star-output-v3Copy head branch name to clipboard