Creates an instance of the Hydrophonics garden area.

Creates proper instance of the Hydrophonics garden area to avoid issues, mainly with power/APCs.
Adjusts areas to ensure that alarms in the Hydrophonics garden do not lower emergency shutters outside in the primary hallway.
Merge pull request #5407 from PsiOmegaDelta/Impurity

Creates an instance of the Hydrophonics garden area.