[ADD]: Universal Emergency Locker

[Jakumba]

About the PR

• Created a new locker for universal emergency internals/supplies.
• Created a new set selector for extended emergency air tanks.
• Replaced all O2/N2 emergency closets via migration.
• Updated Emergency Toolbox fill.

New sprites for the locker provided by @heirdragonair

Why / Balance

Issue with lack of internals for non-o2 breathers raised here: https://discord.com/channels/1301753657024319488/1453083230562422916

Solution proposal/direction thread:
https://discord.com/channels/1301753657024319488/1455969900265865267/1455969900265865267

Technical details

.yml slop.

Media

Requirements

• I have read and am following the Pull Request and Changelog Guidelines.
• I have added media to this PR or it does not require an ingame showcase.
• I have tested any changes or additions.
• I can confirm this PR contains no AI-generated content, and did not use any AI-generated content.

Breaking changes

Migration should be fine, but y'know.. It's a migration.

Changelog

🆑 Jakumba, heirdragonair

• add: Added universal emergency locker containing everything you need to survive in a pinch.
• remove: Removed O2/N2 emergency lockers.

[github-actions]

RSI Diff Bot; head commit 5835af8 merging into 9ff9690
This PR makes changes to 1 or more RSIs. Here is a summary of all changes:

Resources/Textures/_DEN/Structures/Storage/universalemergencycloset.rsi

State	Old	New	Status
closet			Added
closet_door			Added
closet_open			Added
welded			Added

Edit: diff updated after 5835af8