[#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
[#54619346] ImportModules controller, action: failed_rows

Download csv with failed rows
[#54619346] Download Failed Rows CSV

If status is pending it means the user must choose between
continue and abort. If the processes has been aborted a link appears
to download the csv failed rows
describe tasks so they are listed in rake -T
destroying import destroys all its import_modules
[#54619346] refactor code

- changed route of import_modules_controller#failed_rows
- moved confirmation to import_modules_controller