Adds a new kind of slime, rainbow slimes!
*Honk based slime that works off existing unused sprites, it has a rare chance of appearing as offspring of any tier 5 (end tier) slime.
*Has two reactions:
**Plasma reaction will spawn a modest (10) ammount of bananium.
**Banana reaction (blend a banana for banana juice and inject that) will spawn a number of NPC clowns (has logging a la gold reaction).
*Rainbow slimes are difficult to breed as they only mutates back to grey slimes.
**This also provides a way for players to get new grey slimes if they were dummies and used all their grey cores for monkey cubes.