Adds two stats button on res.partner form view : - The first one will show all the courses that the partner is following. - The second one will show all the certifications the partner has passed. When the partner is a company : - All the courses followed by all the partners are shown without duplicate. - All the certifications passed by all the partners are shown. PR : #34908 Task ID : 2034097 Signed-off-by: Thibault Delavallee (tde) <tde@openerp.com>