Create item list field formatter for displaying ordered and unordered lists

As per the suggestion introduced a new Field formatted to show the Text, Number, and Entity reference fields in the List Item format.

Created MR for the patch.

The Commands failed because there were minor issues with the EntityReferenceLabelListFormatter file. The uploaded patch meets the Drupal coding standards and best practices.

Updated the MR 3742

The failures appear to be legit.

This will need test coverage as well.

Trying to fix the fail tests.

Fixing tags.

Thanks to all that contributed to this.

I've updated the remaining tasks with the tests that we should add for this.

See Example of functional test that checks a field formatter.
1. https://git.drupalcode.org/project/drupal/-/blob/10.1.x/core/modules/tax... for an example of testing a field formatter.

See Example of Kernel test that checks a field formatter.
2. https://git.drupalcode.org/project/drupal/-/blob/10.1.x/core/modules/fie...

We could probably get by with 3 tests (ol, ul, csv) in each of these files

• https://git.drupalcode.org/project/drupal/-/blob/10.1.x/core/modules/fie...
• https://git.drupalcode.org/project/drupal/-/blob/10.1.x/core/modules/fie...

Plus a new test file for TextListItemTest.php that follows the same paradigm as the other two.

trackleft2 → changed the visibility of the branch 3328429-create-item-list to hidden.

trackleft2 → changed the visibility of the branch 11.x to hidden.

trackleft2 → changed the visibility of the branch 10.1.x to hidden.

trackleft2 → changed the visibility of the branch 3328429-create-item-list to active.