[FIX] base_external_referentials : fix test on resource, should not use __iter__ indeed a dictionnary is also iterable
[FIX] base_external_referentials : fix test on resource, should not use __iter__ indeed a dictionnary is also iterable

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