New: Can import members with assistant

htdocs/exports/class/export.class.php

htdocs/imports/class/import.class.php

htdocs/includes/modules/DolibarrModules.class.php

htdocs/includes/modules/modAdherent.class.php

htdocs/includes/modules/modProduct.class.php

htdocs/langs/en_US/members.lang

htdocs/langs/en_US/products.lang

htdocs/langs/fr_FR/companies.lang

htdocs/langs/fr_FR/members.lang

htdocs/langs/fr_FR/products.lang