[Suggestion] Add sounds to ziplines

Ziplines are a great part of ParCool, but feel slightly underwhelming to use. I believe this might be down to the lack of sound effects.

**Suggestion**
When a player is ridding a zipline, sound effects should play. This could include:
- Rushing wind (like when a player is using an elytra, and swoops down from the sky)
- Zipline mechanism (the sound of the zipline its self)