[HR] clean models in changes  hr_empolyee models,hr_recruitment models in remove the mail_broadcast method,hr_employee models in remove check_recurison method,hr_applicant models in add the attachment_ids field,hr_employee model in remove  override create() method and change set_remaining_days method,hr_applicant model in change  the field

[HR] clean model in remove the mail_broadcast method,hr_employee models in remove check_recurison method,hr_applicant models in add the attachment_ids field,hr_employee model in remove override create() method and change set_remaining_days method,hr_applicant model in change the field