Here comes the 3.0.0 release! For the requirements to support Spigot/Paper 1.20.5-1.21, we made much internal changes. However, there's no much end-point users changes.

Changelogs:
- Support 1.20.5-1.21.
- ItemStack:
- - Completely Rework. Improved performance and added featrures.
- - Now, you can edit Item Type, Item Count with [Nbt Json].
- - Removed [Display Json], instead of, use [Lore Json]
- - Replace Config: `Handle-Nbt-Display-Compound` is removed, and `Handle-Nbt-Lore-List` added.
- Use FieldAccessor to access fields in record classes.
- Add `protocolstringreplacer.feature.parsepapi` permission.
- Added `resetConsoleColor` config entry.
- Update Locale files.
etc...

Internal changes:
- Migrate Maven to Gradle.
- Packages and Classes renamed.
- Use Kotlin Language for later codes.
- Rewrite bunch of things.
- Imported NMS.