Converted lettuce Course Team page tests to bok choy

Multi-commit history:
- hide drag functionality for entrance exam section.
- hide entrance exam subsection elements e.g. delete, drag, name etc.
- show unit/verticals expanded in case of entrance exam
- modify code in order to allow user to update entrance exam score from UI.
- write down unit tests.
- write down Jasmine tests.
- add bok-choy test
- updated bok-choy test
- internationalize string
- repositioned sequential block creatori
- SOL-221 (entrance exam message)
- SOL-199 LMS Part (show entrance exam content) and hide the course navigation bar.
- redirect the view in case of entrance exam.
- update code structure as per suggestions
- write down unit tests
- fix pep8
- instead of hiding the exam requirement message, now also showing the exam the completion message (success state).
- write down unit test to show exam completion message.
- Update code as per review suggestions
- update doc string
- addressed review suggestions
- change sequential message text
- css adjustments
- added new css class for entrance exam score in studio
- added Jasmine test for remaning coverage
- sequential message should appear under the context of entrance exam subsection.
- updated text in CMS and LMS as per suggestions.
- added unit text to insure sequential message should not be present in other chapters rather then entrance exam.
- skip setter if empty prerequisite course list
- exclude logic from xblock_info.js that is specifically related to entrance exam.
- added js tests and updated code as per suggestions
- added tests
- addressed several PR issues
- Several small fixes (style, refactoring)
- Fixed score update issue
- added some more unit tests.
- code suggested changes.
- addressed PR feedback

TNL-1185

The CSS is also restructured a bit to style both the progress bar and
the status text based on the state of the upload using a single class
on the parent element.

TNL-1137

TNL-652

It's a problem for accessibility

It looks like the 'New Course'/'New Library' buttons on the studio home page.

Clicking the 'Add Component' button scrolls down to the 'Add New Component' buttons.

Most of the updates are related to the My Courses -> Studio Home change.

SOL-1, SOL-2, SOL-3

The button downloads the CSV data containing all video URLs.

* updating vendor files
* updating class syntax (to new FA-based classes) for all UI elements
* correcting broken tests

TNL-997

TNL-998

Co-authored-by: Greg Price <gprice@edx.org>

Co-authored-by: Chris <crodriguez@edx.org>
Co-authored-by: Mark Hoeber <hoeber@edx.org>

TNL-683

TNL-291