Security Guard Job & STC/MailCarrier Spawn and Requirement change

[dvir001]

About the PR

Adding the security guard job (Station Security) for frontier
Added STC spawn and open job on round start
Added MailCarrier open job on round start

Why / Balance

Required for security split.

Technical details

Based on security job, yml.

Media

• I have added screenshots/videos to this PR showcasing its changes ingame,

Breaking changes

N/A

Changelog
N/A

🆑 dvir01

• add: NT Added the security guard job to frontier to help SR & STC keep the outpost safe.

[github-actions]

RSI Diff Bot; head commit f72fbaa merging into a0c89c8
This PR makes changes to 1 or more RSIs. Here is a summary of all changes:

Resources/Textures/_NF/Markers/jobs.rsi

State	Old	New	Status
securityguard			Added
stc			Added

Edit: diff updated after f72fbaa

[dvir001]

I need someone to tell me what the job-description-security-guard need to be.

[dvir001]

All done