Implement the activity dates functionality for each activity and output them in view.php - Part 2

We need to implement the activity dates functionality for each activity and output them in view.php.

The code should be accompanied by unit and behat tests.

This issue relates to implementation in the following activities:

• label
• lesson
• lti
• page
• quiz
• resource
• scorm
• survey - has been done on the part 1 issue.
• url
• wiki
• workshop