Add AtomicStryker's Infernal Mobs style particle auras

Add the multicolored potion particles that are around the Infernal Mobs from AtomicStryker's Infernal Mobs or something similar, at least as a config option. It's currently rather difficult to tell which mobs are Elite, Ultra, or Eldritch, as compared to normal mobs.

~~Also a config option to remove the nametag thing from the mobs without affecting the bossbars would be nice.~~ Nvm. Already exists. lol

No files, tests, or entry points are named. Start by locating the mob-tier rendering code and reviewing how Elite, Ultra, and Eldritch mobs are currently distinguished, then compare the requested effect with AtomicStryker's Infernal Mobs. Done means configurable multicolored potion particles visibly distinguish those tiers from normal mobs.

Written by the indexing model from the issue text.