Issue #3508157: New transition - Manage form display alter

src/Entity/WorkflowTransitionInterface.php

src/Form/WorkflowTransitionForm.php

src/Form/WorkflowTypeForm.php

src/Hook/WorkflowEntityHooks.php

src/Hook/WorkflowHooks.php

src/Hook/WorkflowTypeFormHooks.php

workflow.entity.inc

workflow.services.yml