Speed Paths: Advancement triggered clock

[EpyonProjects]

Changes the constantly running clock to one that activates only after a player steps on a dirt path. This would keep the clock off more often than not.

This only really makes sense as long as "advancements that constantly fail are very optimized" holds true.

[Bloo-dev]

Feedback from server testing: This works as expected.

[misode]

I think it might be better to close this and revisit this idea in the future, when we're not in an updating phase.