Rewrite course renderers to use templates

The course should work almost as before. Some of the cases are tested via behat but the era some course examples without tests.

Topic format tests

1. Create a course using the command: mdk run makecourse.sh
2. Login as admin and enter the course.
3. Check the 10 sections are displayed and have some activities on it.
4. Turn editing on
5. Check all editing element appear (move handlers, pencil to rename, edit dropdown menus and add activity or resource)
6. Check that if you rename an activity with the pencil icon the activity is renamed.
7. Check you can drag and drop an activity and it gets fixed in the new position
8. Add an activity to a section (for example a page)
   1. Check  the activity is created
9. Drag and drop a file from your computer file explorer into the course and create a resource
   1. Check the resource is created
10. Delete one activity
    1. Check the activity is deleted.
11. On an activity edit:
    1. Check "move right" indent the activity
    2. Check "move left" unindent the activity
    3. Check "hide" dimmed the activity and display the "hidden from students" message
    4. Check "show" undimmed the activity and remove the "hidden from students" message
    5. Check "duplicate" creates a copy of the activity right below it.
12. On the section edit:
    1. Check "highlight" highlights the topic
    2. Check "remove highlight" removes the highlight
    3. Check "hide topic" dimmed the full topic and adds the "hidden from student" message
    4. Check "show topic" undimmed the full topic and remove the "hidden from students" message
    5. Check "delete section" delete the full section.

Weekly format test

1. Go to the course settings and change the format to weekly.
2. Check the course sections are now weeks
3. Rename one section
   1. Check the section name changes
4. Dropdown a section "edit" menu
   1. Check no "highlight" option is available (as it is only for topic format)
5. Check the "add weeks" button creates more weeks at the end of the course.

Social format test

1. Go to the course settings and change the format to social.
2. Check the course only displays the main forum as course content
3. Add a "social activities" block
   1. Check some activities (the one from topic zero) appears in the block.

Single activity test

1. Go to the course settings and change the format to social. Then select "glossary" as activity type. Then add a name to the glossary and go to the course. 
2. Check the glossary is the only thing displayed in the course content