Kudzu improvements

[Dr. Puggers]

On one hand, this would made Kudzu more like blob/flock as if it's a gamemode on it's own. But on the other hand, kudzu is mostly used as an annoying to deal with distraction that doesn't really go anywhere.

When you weigh that, I think that Kudzu should be reworked to be more fun.
But only available to Botanists as it is and not in surplus crates/thief rewards.