[#61558718] ContactsModuleImport#rollback
[#54619346] delete environment-variable.yml
[#54619346] Add failed_rows column to import_modules
[#54619346] add failed_rows getter and setter
[#54619346] New status: *pending*, excepting user to take a decision
[#54619346]  New status *pending*

Also because this method is *realtime* status import_modules
must be updated before asking for their satuses
[#54619346] Add new controller ImportModules and action failed_rows