title: inheritance view and adding fields
body: <p>i have candidat model inherit the hr.emplyee model
  i want to display the form view of hr.employee and add fields of my child model candidat </p>
  
  <pre><code>class hr_candidat(models.Model):
  _name='hr_recrutement.candidat'
  _inherit='hr.employee'
  _description="Informations du Candidats"
  
  situation=fields.Selection(string="Situation",selection=[('Nouveau','Nouveau'),('RDV Thechnique','RDV Technique'),('Annulation','Annulationn')])
  </code></pre>
  
  <p>.
  .
  .</p>
  
  <pre><code>&lt;record id="hr_recrutement_candidat_form" model="ir.ui.view"&gt;
          &lt;field name="name"&gt;Candidat&lt;/field&gt;
          &lt;field name="model"&gt;hr_recrutement.candidat&lt;/field&gt;
          &lt;field name="arch" type="xml"&gt;
              &lt;form string="Candidat"&gt;
                  &lt;sheet&gt;
                      &lt;group&gt;
                          &lt;field name="situation" /&gt;
                          .
                          .
                      &lt;/group&gt;
                  &lt;/sheet&gt;
              &lt;/form&gt;
          &lt;/field&gt;
      &lt;/record&gt;
  </code></pre>
  
  <p>I dont know how to display fields of hr.employee + my fields of candidat in view</p>