[Port] Doing mail again

[adamsong]

Steals the mail code from #12948 because cool pr that went dormant

Document the changes in your pull request

Ports https://github.com/tgstation/tgstation/pull/58146

• Mail boxes show up in cargo shuttle
• Mail has credits for the people addressed on the letter
• Mail can have job-dependent gifts too
• Cargo can deliver mail if they want or tell people to fetch it
• Some holidays are mail holidays, meaning no mail on them
• Can't open someone elses mail

Weights and chances for loots

Spriting

Sprites for mail and stuff

Wiki Documentation

Mail arrives on shuttle, needs removed before the shuttle can leave

Changelog

:cl: adamsong, Inari-Whitebear, ArcaneMusic, Jaw-sh, Tralezab rscadd: Mail for cargo wip: This is work in progress imageadd: mail images and mail crate image /:cl:

[Mqiib]

YES MAIL I LOVE IT

[adamsong]

Added a verb to print a list of all goodies, their weights and relative percents, as well as highlight any jobs with no job specific loot. I'll use this at some point to finalize loot tables

[adamsong]

All the authors from the original pr are credited, unsure of who did sprites specifically

[CMOisLing]

There should be some way of stealing mail if your a traitor cargo tech.

[adamsong]

Thats illegal