Engineering machinery and consoles area detection refactor

[Migratingcocofruit]

What Does This PR Do

Replaces the hardcoded station z level checks on the gravity generator, station alert console, atmos alert console, central atmos console with area checks. Moved the hardcoded networks that were being added to cameras when an alert was activated to variables of /area. Engineering console now gets its networks from the area it is placed in.
Also fixes a bug where some atmos alarms wouldn't show in the atmos alert console(despite showing on station alerts) due to the console only showing alerts from the master alarm of each relevant area while some of those had no master alarm.

Why It's Good For The Game

The gravity generator and most engineering consoles are all hardcoded to only work on the station. This means you can't use them in ruins. Now that possibility exists. This means places like the syndie base can now have atmos monitoring and control as well as a gravity generator.
I originally made these changes as part of a planned ruin for engineering practice, but considering these changes aren't specific to that ruin I decided to make them their own PR.

Images of changes

Testing

• Activated and shutdown the gravgen. Made sure gravity was removed and restored and that mob were slammed to the ground properly
• Verified the appropriate alerts showed up on each console
• Verified the correct cameras show up on the engineering monitor when an alert is activated
• Repeated all tests on the syndie base with alarms and APCs that were varedited to report alerts(the syndie type doesn't by default)

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Declaration

• I confirm that I either do not require pre-approval for this PR, or I have obtained such approval and have included a screenshot to demonstrate this below.

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Changelog

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tweak: Grav gen, atmos alert console, atmos control console, engineering camera monitor, station alert console now all determine their relevant areas and devices depending on the area they are placed on instead of hardcoded checks for things being on station.
fix: Atmos alerts now properly show on the atmos alert console
/:cl:

[github-actions]

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