Velocity build 3.3 Brand Changer Support

[R00tB33rMan]

As of this commit, Velocity support breaks in conjunction with the brand feature in Leaf. Here's the log: https://pastebin.com/bGkhpCRp

[JosTheDude]

If you're looking for support on velocity builds 320+, you can check here:

https://github.com/JosTheDude/leaf/releases

The fork was made with Velocity 3.3.0 Build 320+ support in mind; so the file size is much larger due to netty and fastutil having to be compile scoped.

Not compatible with Velocity versions under build 3.3.0-320, hence the separate repository

[R00tB33rMan]

New issue appears as of build 329+, which makes these changes.

Essentially, this update changes various variable names and nothing more. Assuming all this requires is a few modifications.

[Smudgge]

I've removed the brand changer from working when the velocity version is 3.0 for now.