[mod request] maximum time spent on a job per day setting

[blub01]

yes, I do not, in fact, know a better way to name it. basically what I would really like to have is the ability to tell a pawn to do research first, but at most 20% or so of the day, and then do other stuff - or do both construction and mining in equal quantities, or split some time of for hauling and cleaning, etc. etc.

I think this would improve the game greatly, especially because it would cause quite a reduction in micromanaging, so if some modder feels like doing it, it'll be greatly appreciated.