The UX team confirmed a badge shouldn't be awarded when the criteria
use a passing grade and the user gets a failing grade.
So the COMPLETION_COMPLETE_FAIL status won't be considered
completed for activities with completion that require a passing
grade.
Upgrade the support for Open Badges 2 to support a real open badges 2 backpack.
Moodle can only talk to one backpack at a time, so after switching backpacks, users
will have to manually disconnect and then reconnect their backpack to the new one.
This commit combines several changes:
* Split classes into badges namespace
* Publish expiry data with a badge
* Publish badge alignments in badges exported to the backpack.
* Export the criteria for a badge to the backpack.
Properly integration badges with competencies provided in Moodle.
Automatically grant the badge when the defined competencies are marked as proficient.
