Emergency shutters down have pressure/temperature difference overlays.

Based on the emergency shutter from Paradise.
Merge pull request #6291 from mwerezak/engine

Dev-Freeze Engine Tweaks + Powernet Fixes
Merge pull request #6303 from PsiOmegaDelta/EmergencyShutters

Emergency shutters now have pressure/temperature difference overlays
Adds inflatables to EVA storage.
Fixes several outstanding bugs with new hydroponics.
Fixes most of #6300
Trying to add to previous.
Merge pull request #6310 from Zuhayr/dev-freeze

Dev freeze fixes.
Merge pull request #6308 from PsiOmegaDelta/EVA

Adds inflatables to EVA storage
Merge remote-tracking branch 'upstream/dev-freeze' into engine