I thought about renaming the class to just plain attempt, but I
acutally think quiz_attempt makes it clearer what this is. Also
not changing the name massively reduces the pain for everyone
updating their code (including me right now!)
As far as now all them have correct privacy level2 namespace:
- Move them to "privacy" subdir.
- Rename the files to "provider_test.php", this includes old
privacy_test.php and privacy_provider_test.php files
- Rename the testcase to provider_test too (to match file name)
Also, change some relative paths and comments to point to new
locations.
