As a user with appropriate capabilities, I can add a tag(s) to a question bank question that exist at the category context.

• As a user with the moodle/question:tagall capability, I can add tag(s) to any question bank question that exist at the course category context.
• As a user with the moodle/question:tagmine capability, I can add tag(s) to any question bank question that I created and which exists at the course category context.
• I should be able to click the tag icon for a question bank question at the category context to add/modify/remove tags for each question
• Clicking the tag icon should open a dialog specifying category and question name, a list of the question tags belonging directly to the question, the current course name and a list of the question tags attached only in this course.
• The list of tags attached directly to the question will only be editable if the user has the capability to edit the question.