Import question as new version

This plugin allows you to import a question from a Moodle XML file as a new version of an existing question.
Once this plugin is installed, in the question bank, in the action menu for each question, there is a new option
‘Import a new version’. If you choose that, you see a form where you can upload a Moodle XML file containing a
single question. If possible (e.g. if the question type matches) then that question is imported as the latest
version of this question. (This is different from the standard way of importing questions, which always
creates new questions.)