Feature: Import quiz from STACK question library

[EJMFarrow]

Can we use similar code to the gitsync quiz import to create quizzes from the STACK library?

Scenario: We copy a single category quiz context from a gitsync repository into the STACK library. The quiz contains only questions from the quiz context. We import the quiz into Moodle via a button in the library. We can then export the quiz back to the gitsync repo if it gets updated.

• Attempting quizzes with questions from multiple categories/contexts would almost certainly lead to complex code and insanity.
• The filepaths in the quiz data file will not be correct. They will be top/category/file-name.xml. We just need the file-name.
• We will probably need the gitsync category file to make this work.
• All the questions will need to be imported as part of the quiz import. Is this through a single call to Moodle or multiple? Maybe single makes most sense as otherwise we have to retain a link between files and questionbankentryids on the front end for final quiz import call. This affects Feature: Import folders of questions from STACK question library #1357.
• Multiple quizzes using the same questions will each need to import the questions and use separate copies.
• Look into subcategories in questions.