Adds a cache to the quarry in order to reduce load and send larger stacks through pipes instead of just single items. Coin tossing ensures the cache gets purged around every 200 seconds. The interval isn't fixed in order to prevent material spikes from multiple quarries which got loaded simultaneously. When the cache is full, or the quarry finished, it is purged too.
Don't load the whole digging area when only a small piece is relevant.
Also, move the (time expensive) check whether the air above a block is free to the last position, which spares unneccessary checks when multiple quarries are placed together, or a quarry has to loop over air for another reason.
The changes that this covers are that the alloy furnaces now have one
"src" inventory instead of a "src" and "src2"; that the tool workshop
is now MV; and the existence of MV compressor, extractor, and centrifuge.
Squeeze the range of material shielding values. The strongest shielding
materials get weaker, and weaker shielding materials, especially low-end
ones such as dirt, get stronger. The radioactivity of the active
reactor core is increased so that the standard shielding is (still)
only narrowly sufficient.
Make the "radioactive" group value be the safe distance in millimeters
rather than meters, to allow for intermediate values. Use such
intermediate values for the uranium blocks, using the existing formula
with this finer quantisation. All other radioactive nodes retain their
existing radioactivity exactly.
Tool workshop can now accept tools to repair via tube. It has upgrade
slots. Battery upgrade reduces its power consumption. Tube upgrade
makes it eject fully-repaired (or unrepairable) items via tube.
Make the generic processing machine code willing to complete more than
one processing cycle in one ABM cycle, and more generally to carry
over leftover processing effort after completing a processing cycle.
The src_time meta item now represents accumulated processing effort
(time multiplied by speed) in a scaled form (to retain fractions),
rather than just time in integral seconds. This affects the MV furnace,
with speed 4 and most recipe times being 3 s, and will be essential for
faster furnaces.
