Checks whether the continuous job item should be created.
\Drupal\tmgmt\Entity\Job $job: Continuous job.
string $plugin: The plugin name.
string $item_type: The source item type.
string $item_id: The source item id.
bool TRUE if continuous job item should be created, FALSE if not.
public function shouldCreateContinuousItem(Job $job, $plugin, $item_type, $item_id);