Adds a traitor rapid healing item: "Hyperregenerative Medipen"

[tipoima]

What Does This PR Do

Adds "Hyperregenerative Medipen", highly potent but short-lasting healing item.

Total healing varies:

• Brute/Burn is around 120+ About half of it is applied in the first 4-5 seconds, with the rest lasting about 15 more.
• Toxin is around 50
• Suffocation and Cellular are healed fully by Perfluorodecalin and Rezadone respectively.

Actual contents of the medipen (chem amounts mostly chosen to align nicely with their metabolism rates): UPD: Iron, Sanguine, and Spaceaccilin cut

Non-contraband (doesn't contain anything that the station can't produce, has no offensive use). Price low-balling at 10 TC, might be better at 15, but I don't imagine it being meta either way. Not available to nukies.

Why It's Good For The Game

While healing items are fairly common, traitors don't really have any alternative for when you need them right now and can't go hack a medical vendor for some patches. Only (job unrestricted) sources of healing in the uplink are omnizine smokes, healing holopara, and adrenals.

Images of changes

Testing

Bought the pen, blasted myself with all kinds of damage, injected myself, got healed.

Changelog

:cl: add: New traitor item: Hyperregenerative medipen, rapid healing item. /:cl: