Hydroponics tray processing is a massive chunk of machinery processing
for no good reason, I have a sneaking suspicion that this is due to proc
overhead on get_trait, as process can call it upwards of 30 times per
tick per tray.
Realistically most of the things that are traits should instead be
variables, but that's a refactor for someone with more time.
Fixes#18227 and #18172
Fixes the Tempest SMG not using its wielded icon state.
Fixes exoplanet plants looking for the wrong number of growth stages and
constantly runtiming.
