Multiloader Fabric + Neoforge

[2No2Name]

Changes

• Mojmap, replacing yarn
• Rename me.jellysquid.mods to net.caffeinemc.mods
• Multiloader implementation with fabric and neoforge support

TODOS

• Automatic tests for neoforge
• Mod compatibility tests for neoforge
• Stability, Correctness and Performance testing for neoforge
• Test run configurations for intellij
• API jar

[2No2Name]

Creating a beta release. Even though there is still lots of work being done, if there aren't any big issues, this will be merged.

[2No2Name]

The automatic tests for neoforge are still missing, but I'll merge this without