See required scores and max points at a glance

Problem/Motivation

When editing a course, you can see the mandatory status and required score for individual lessons by clicking the Modify Parameters button, but you can't see those values at a glance for all lessons in the course. Similarly, when editing a lesson, you can only view the max points setting one at a time.

Steps to reproduce

Proposed resolution

Add mandatory, required score, and max points to the tables in the respective entity reference widgets.

Tech notes

Drupal\lms\Plugin\Field\FieldWidget\LMSReferenceTable::formElement():
Currently we have

          'parameters' => [
            '#type' => 'hidden',
            '#default_value' => $reference['parameters'],
            '#attributes' => ['data-lms-selector' => $parameters_selector],
          ],

Where the value gets replaced from an AJAX callback. It'll be easy to add those parameters visually and update accordingly, the challenge here may be fitting them in the table somehow.

User interface changes