[REF] base_external_referentials : refactor the order for exporting csv
[REF] base_external_referentials : refactor the order for exporting csv

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