Custom Species for IPC

[Mr.Popper]

Add another fillable field in IPC character setup called "custom species". Whatever you type in the box is then displayed as your species in-game. For example: you have an IPC named Bob and you set his custom species to "T-800". When someone examines him in-game the window says "This is Bob, a T-800" instead of "This is Bob, a Baseline Frame". It would be purely cosmetic and IPCs would still use the components and mechanics of their frame.

Some benefits of this off the top of my head:

• Help get the ball rolling on establishing original brands, especially non-shells that aren't visually distinctive sprite-wise. Instead of having to explain to everyone that you're a T-800 they could tell at a glance.
• IPCs would feel more diverse without having to add more frames.
• Former brand IPCs that were forced to change their name could still show their pedigree in a visible way. Say Jane was a Hazel before being forced to rebrand. Instead of her having to explain in her FT her Hazel-ness or exposit it, you could just examine and immediately see "This is Jane, a Hazel".
• The code could be reused for other custom subspecies, like genetically modified humans.

[NM_]

I'd prefer a compromise of "This is Bob, T-800 Series, Baseline Frame!" or some variation that still preserves the particular IPC frame. Costs nothing to retain information on inspect.

Otherwise I don't have a strong preference, looks good!

[GreenBoi]

This is being implemented with the following PR: https://github.com/Aurorastation/Aurora.3/pull/22772, the option will be available in Character Setup as "Custom Model"
As desired, the true frame is preserved at the end of the sentence. Shells that opt into using it are also necessarily revealed.