Initial commit

[Izzakio]

Description

Proposed changes

Related Issues (if applicable)

Checklist

• I have fully tested the proposed changes and promise that they will not break everything into chaos.
• I have also tested the proposed changes in combination with various popular addons and can confirm my changes do not break them.
• I have made sure that the proposed changes do not break compatibility across the supported Minecraft versions (1.16.* - 1.20.*).
• I followed the existing code standards and didn't mess up the formatting.
• I did my best to add documentation to any public classes or methods I added.
• I have added Nonnull and Nullable annotations to my methods to indicate their behaviour for null values
• I added sufficient Unit Tests to cover my code.
• I Add slimefun addons

[github-actions]

Pro Tip!
You can help us label your Pull Requests by using the following branch naming convention next time you create a pull request. ❤️

Branch naming convention	Label
feature/**	🎈 Feature
fix/**	✨ Fix
chore/**	🧹 Chores
api/**	🔧 API
performance/**	💡 Performance Optimization
compatibility/**	🤝 Compatibility

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If your changes do not fall into any of these categories, don't worry. You can just ignore this message in that case! 👀

[Izzakio]

Add addons slimwfunt4
Infinity
Supreme

[Boomer-1]

you can't add addons to core slimefun. if you want addons to support 1.21, you can help them by working with their dev. Infinity expansion has been abandoned for over 3 years and will be dead with 1.21. there is a new infinity expansion 2 being created by one of the community devs