adds a roundend threat log, showing player threat edits

[JohnFulpWillard]

About The Pull Request

Hacking comms consoles and Revs winning both edit the station's threat, but aren't listed anywhere. There's other ways to edit threat, mostly through admins, rulesets refunding themselves, and roundstart threat donating to midround. I didn't want to log literally everything on the report since I feel that would clutter it too much and make admins not want to edit threat so they wouldn't be revealed adminbussing.

What it looks like in-game to admins and players

Why It's Good For The Game

Closes #63967
Makes it obvious why there's more threat than there should have to players.

Changelog

🆑
qol: Revs/Traitors adding more threat is now shown on the roundend report.
/:cl:

[Mothblocks]

Can you make this an optional argument on create_threat instead? Such that the "Threat +num - " part is automatic?

Bonus points if you do this for standard threat_log too.

[JohnFulpWillard]

Can you make this an optional argument on create_threat instead? Such that the "Threat +num - " part is automatic?

Bonus points if you do this for standard threat_log too.

I tried following through with this as much as I could, I added a new log_threat thing to pass through and tried to make both threat_log and roundend_threat_log use it. Let me know if you're fine with this or wanted something else.