take into account the possibility of several shift_template_registration for one res_partner, but only one active

code cleaning : get rid of quick-and-dirty circular dependency fix by moving some code in separated file

#7325 : use suppleant_member_id instead of parent_id or is_associated_people to perform binom checks

This reverts merge request !266

This reverts merge request !267

do not fetch res_partner with parent_member_num when looking for members with short option (associated to a search from brinks)

ajout nouveau champ configurable au process d'inscription : profession (champ également rendu modifiable post circuit d'inscription depuis l'espace membre)

efficiently fetch makeups to come data in order to (1) display members with only makeups to come and no makeups to do and (2) speed up display of makeups admin