* Fix functional tests

* Update functional tests

* add missing dependencies

* make sure to run the plugin only with the dependencies it actually needs (everything else is only there to make sure it's built before the plugin)

* Nu Validator is not compatible with this version of ICU4J

* remove the isChromeDockerContainerReusable() configuration option and rely instead on a flag indicating if the container was created by XWiki
* remove unneeded checkstyle suppressions
* allow the default implementation to be installed in a subwiki (by a global wiki admin), but make sure that subwikis reuse by default the same Docker container running headless Chrome
* add more unit tests

* implicit version does not seems to work well in extra plugin dependencies

* add missing dependencies

* disable solr during packager plugin execution because it does not seems to stop properly (not releasing the lock)

[misc] Use text editor for the PDF template fields (instead of default WYSIWYG editor) and make the text areas larger.

* Use the field name expected by the server-side.

XWIKI-19929: Fallback on client-side PDF generation if the server-side generation fails or can't be used
XWIKI-20144: Use the user's web browser for PDF export by default, instead of relying on Docker

* Nu Validator is not compatible with this version of ICU4J

* add back missing dependency

* fix type

* make sure xwiki-platform-search-solr-api is built before the packager plugin