Updates for Beat Saber v1.32.0 -> v1.34.2

[daniel-chambers]

This PR builds upon the PR I made to fix the mod for v1.31.0 (#17) and includes all its commits.

The only breaking change in this version was that the Color.ColorWithAlpha extension method got moved into BGLib.UnityExtension and so that library needed to be referenced.

This PR was built against BSML 1.8.0 (released), and @Meivyn's SiraUtil PR.

[daniel-chambers]

Just tested this against v1.34.2, still works. 👍 (Compiled against the released SiraUtil and BSML)

@ErisApps Would love to see this merged and put on BeatMods for others to easily enjoy. 🙂 Let me know if I can help.

[ErisApps]

Hii,

wanted to pick up modding again during the holidays, but my index sadly broke down during the holidays as well and I'm currently in support limbo. Will try to pick this up as soon as possible though.

[RuoChennn]

I compiled branch # 26dd593, but it couldn't load the song properly in 1.34.2. However, I adjusted the hitscore bloom to false and the game can be loaded normally