Fixed Buckets, Pest Spray, etc for Hydroponics

Allows hydroponics trays to be filled from buckets, bottles, beakers,
etc. as well as fixing Pest-spray (plus the unused Weed-spray) and
Plant-B-Gone being unusable on trays.

TL;DR: Botany is now less tedious and makes more sense.
Merge pull request #426 from FalseIncarnate/master

Fixed Buckets, Pest Spray, etc for Hydroponics