Set/get personal requests in bulk

[Choumiko]

I'd like api functions to get/set (maybe clear?) all personal logistic requests at once, something like

LuaControl:set_personal_logistic_slots(slot_data)
slot_data: table of PersonalLogisticParameters

The table keys would correspond to the slot indices, nil values are slots that are not set or that should be cleared (in the case of the setter function)

[Rseding91]

What's the intended use-case over the single setter/getter? If it's performance; it wouldn't make any difference. I fixed the performance issue of setting/getting requests when there are a large number of them already.