Fixes #1404 by changing how hydro trays can receive reagents.  Pretty much...

... any reagent container works now, except pills.  Food *does* work, it's used as "compost".  I might make pills work as compost as well, kinda like those solid Miracle Grow supplements.

Issue #1404 was just that plant-b-gone bottles weren't using their reagent contents on hydro trays.  Space cleaner spray was similarly not used or checked when cleaning microwaves, so I fixed that extension of the bug.

I haven't tested this as thoroughly as I usually test my commits, I'll update this when I'm confident it's all working.  I did run through most possibilities though.

Edit: Consider this edited, I've tested it pretty thoroughly.  Definitely my biggest commit yet, though.