* Add foldable uniform jumpsuit base component
Initial work on porting impstation/imp-station-14#375.
Component gets the Impstation suffix to not conflict with the existing
DeltaV component for rolled-up sleeves on some security uniforms.
* Add folded jumpsuit sprites for (some) upstream jumpsuits
Once again ported from impstation/imp-station-14#375. Only some of our
many, many jumpsuits are affected, and all of them are in the default
namespace.
Some of these sprites aren't even used because our own (unmodified) _DV
sprites take priority, so there is a lot of cleanup to be done.
* Make (some) jumpsuits foldable
Still porting impstation/imp-station-14#375. Notable jumpsuits NOT made
foldable include:
- The Salvage Specialist and HoP jumpsuits, which use _DV sprites at
the moment.
- Numerous security jumpsuits (due to rollable sleeves).
- Pretty much all the colored jumpsuits for some reason.
- The prisoner jumpsuit (this one in particular feels like a huge
oversight).
- All DeltaV-, Nyano-, EE-, and Impstation-specific jumpsuits.
- Several seemingly random upstream jumpsuits including the reporter's
jumpsuit and all variant bartender uniforms.
- All skirts.
Uncertain at this time whether to let those come in a separate PR.
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