Loot Box plus plus

# Loot Box++ 1.0.0-beta.1

First public beta release of Loot Box++.

## Added
- Three loot box levels
- Configurable loot tables
- Server-side weighted reward selection
- Variable reward quantities
- Animated loot box roulette
- Responsive loot box GUI
- Reward preview roulette
- Reward quantity display
- Loot box consumption
- Reward claim system
- Reward recovery when closing the GUI
- Full-inventory reward protection
- Double-opening protection
- Opening sound effects
- Roulette tick sounds
- Reward completion sound
- Reward glow effect

## Technical
- Minecraft 1.20.1
- Forge
- Java 17

This version is a beta and may still receive gameplay, balancing and polish changes.