[CHAST] Refactoring Java

Refactorings designed for Java.

Structure

base: Base operations for running refactorings
- analyzers: Code for analyzing code based on rooster/jdt
- roaster_jdt: Code based on roaster/jdt.
- spoon/spoonExtensions: Code based on spoon.
- This is also the entry point for loading code and verifying syntax.
refactorings: Home of all the refactorings currently implemented
- class_to_record: Refactoring for converting a java class to a record if possible.
  - A chast recipe is available with some tests available. Check the main repository for a demo.