Medbay Areas

Breaks the medbay hallway down into smaller areas.
Reduces the headache caused by breaches.
Changelog update.
Merge pull request #6972 from PsiOmegaDelta/Change

Changelog update.
Merge pull request #6970 from PsiOmegaDelta/MapityMap

Medbay Splitup
Merge pull request #6 from Baystation12/dev

Updates