Moodle timer extension par ReShadow

Just a simple moodle timer extension

Adds extra functions to a simple moodle timer:
- Time left
- Time after reload
- Time passed
- Time left per question
- Averagequestion time
- Questions left
- Time warning

User needs to specify duration of moodle quiz and choose desired functions, then hit save.

You will never again finish your quiz too fast or too slow !