Map update

Bug Fix Update of tgstation2.dmm

Map Change Log:
[FIX] - Floating armoury
[FIX] - SM Ejector ID
[FIX] - Floating Camera in Evidence storage
[CHANGE] - Updated chemistry layout for optimisation for TWO chemistry
personnel, spare beakers can be found in locker rather than on table.
[CHANGE] - Engineer Dorm Bedsheets
[CHANGE] - Brand New Escape Shuttle. :D :D :D