Issue #3526031: Remove the "Add Field Inheritance" feature from the entity form

.gitlab-ci.yml

field_inheritance.routing.yml

src/Controller/FieldInheritanceController.php

src/Entity/FieldInheritance.php

src/Form/FieldInheritanceAjaxForm.php

src/Form/FieldInheritanceForm.php

src/Hook/FieldInheritanceHooks.php

tests/src/Functional/GenericTest.php

tests/src/Functional/LoadTest.php