[Skyrat Mirror] Dripshield - sprite touchups, mild armor value poking

[ffmirrorbot]

Original PR: ${this.url}

About The Pull Request

• Blueshield's armor values (for all their suit-slot armor, incl. jackets + wintercoat) have been normalized to regular security vest values, barring their +5 bomb armor and +25 fire/acid armor. This does include their jacket, but I think that's fine.
• Blueshield's headwear values (berets, really, incl. plasmaman's helmet) have been normalized to security helmet values.
• Blueshield vest is now reskinnable, with three variants; the current slim vest, the black variant of the sec vest, and a marine vest, as seen on the TG marine ERT (but with a blueshield badge!).
• Blueshield headset key is now using GAGS.
• Blueshield's headset is no longer a bright blue eyesore.

How This Contributes To The Skyrat Roleplay Experience

(original url)

• blueshield can have a lil armor buff as a treat (just leg meta them, lmao)
• the headset offended me
• drip

Proof of Testing

Changelog

🆑 Hatterhat
balance: Blueshield's armor is now on par with a regular security vest's, with comparatively improved fire/acid and barely improved bomb armor. (None of their equipment covers their legs.)
image: Blueshield's vest is now reskinnable, with three variants; the old slim variant, a sec-vest variant, and a marine variant.
image: Blueshield's earpiece is no longer a bright blue tumor on the side of their head.
/:cl: