XWIKI-16146: Document copy should generate a modified event instead of delete+create when the target already exist
* fix test

  * Fix revapi exception in legacy-office-importer

* Un-legacify it since there are still too many places using Document#getName()
* Fixed a lot of places and even fixed some bugs (like WebHome being displayed in the XClass picker in object edit mode and in class edit mode)
* Also simplified some places by using getPageReference()

  * RequestFactory is now a component
  * Refactor tests for Junit5 and separate them according to their role

  * Create a common abstract class for Move and Copy job
  * Finish to move deprecated methods from RefactoringScriptService to
legacy

  * Start to deprecate and move to legacy the create API from
RefactoringScriptService
  * Introduce the new RequestFactory
  * Introduce the new CopyRequest

* Reproduce the same behaviour than Activity Stream for the "wikis" parameters.

* Move the macro to its proper module in "legacy".

This reverts commit 16ca3015.

* fix tests