[IMP] base_external_referential : get_external_resource can return a list of resource or only one resource depending of the use case
[IMP] base_external_referential : get_external_resource can return a list of resource or only one resource depending of the use case

BT-fgarbely/connector,guewen/connector,dvitme/connector,js-landoo/connector,Endika/connector,BT-fgarbely/connector,zhaohuaw/connector,MindAndGo/connector,brain-tec/connector,MindAndGo/connector,Antiun/connector,anybox/connector,esousy/connector,sylvain-garancher/connector,esousy/connector,BT-ojossen/connector,brain-tec/connector,maljac/connector,mohamedhagag/connector,BT-jmichaud/connector,hugosantosred/connector,open-synergy/connector,acsone/connector,acsone/connector,BT-ojossen/connector,Endika/connector,guewen/connector,anybox/connector,open-synergy/connector,brain-tec/connector,hugosantosred/connector,gurneyalex/connector,js-landoo/connector,BT-jmichaud/connector,Antiun/connector,fevxie/connector,mohamedhagag/connector,zhaohuaw/connector,maljac/connector,fevxie/connector,sylvain-garancher/connector,dvitme/connector,acsone/connector,gurneyalex/connector