Prevent loaders filling whole entity's input item stack

[NeveHanter]

When you supply the assembling machine by loaders they will fill whole item stack of potentially expensive items and force it to produce until it has filled any of its output stack.

Some mods have big item stack sizes, i.e. Pyanodon's mods' Ash has stack size of 1000, that's quite an amount. Its especially problematic if you want to use bots to move/deconstruct buildings that are already full and all of these full stacks quickly fill your inventory and overload the bots moving single item a time.

It would be great if there could be an in-game option or at least prototype property to control this behaviour, and maybe a fall-back or a way to reflect the inserter behaviour for the loaders. It may be useful to do the other way around too, so we could instruct inserter to also fill whole stack.