SM64: Six Act Stories (Demo) - v1.1 Update

Formerly previewed as a single course under the name "The Drop 64", SM64: Six Act Stories is a binary hack that often alters course level states between acts, and ALSO lets you unlock the acts of stars you collect early on the act select screen!

The v1.1 demo update adds a tutorial for this optional mechanic (dubbed Act Select Manipulation). This adds an 18th star that is collected as part of completing or skipping the tutorial, so anyone who already got 17 stars has still practically 100%'d it.

Expect a 30-something star release in future!

Demo contents:
- 2 overworld areas
- 2 courses
- 1 secret level
- 1 tutorial

Tweak credits:
- Skelux, aglab2, JesusYoshi, MrComit, Kaze
Music credits:
- mosky2000

Changelog & Full Credits: https://pastebin.com/xZAcRt1T