Changes to Botany and Medbay

- Grinder added in Botany. Botanists can now grind shit and use it
directly, which is notably useful with nutrients (compost)
-  (Empty) first-aid locker in Cryo was changed into a Defib Locker and
a Defib Recharger was added south of here

Changelog not included for now because I have two open PRs. Might be skipped since it's a very minor addition- Grinder added in Botany. Botanists can now grind shit and use it
directly, which is notably useful with nutrients (compost)