Add HoS safety blankie aka cape as an alternate cosmetic style of the jacket

[Mopcat]

I like the cape. It's cool, edgy, and/or badass. And I like it better than the jacket. Would love if it were an alternate cosmetic style of the jacket, similar to how sec and cap armor have different styles.

[saccharineChampion]

Related thread, including discussion about the drawbacks and advantages https://forum.ss13.co/showthread.php?tid=14342

[aft2001]

Safety Blankey, but it's actually also the full text of Space Law - when you use it in-hand it actually brings up the Space Law page, exactly like the book itself