Support Minecraft 26.1.1

[SirYwell]

Description

Significant changes so far:
The WE adapters aren't packaged in ext.fawe but in the same location as in WE. In future, we might want to move the FAWE-specific classes to their own package under com.fastasyncworldedit.bukkit.adapter or something like that.

TODO

• Make it compile
• Test

Submitter Checklist

• Make sure you are opening from a topic branch (/feature/fix/docs/ branch (right side)) and not your main branch.
• Ensure that the pull request title represents the desired changelog entry.
• New public fields and methods are annotated with @since TODO.
• I read and followed the contribution guidelines.