Move some classes to their expected location

[SirYwell]

Overview

Description

Some dependencies as well as 2 WE classes currently aren't in the correct packages. Aligning the packages with what WE ships will improve compatibility.
This might break other plugins directly depending on FAWE, but I consider it a bug fix.

### Submitter Checklist
- [x] Make sure you are opening from a topic branch (**/feature/fix/docs/ branch** (right side)) and not your main branch.
- [x] Ensure that the pull request title represents the desired changelog entry.
- [x] New public fields and methods are annotated with `@since TODO`.
- [x] I read and followed the [contribution guidelines](https://github.com/IntellectualSites/.github/blob/main/CONTRIBUTING.md).