Change Details

* [x] Make the EWS integration in the client more generic as we need to do more requests than just sending email (get list of of folders, fetch email, send modification) * [ ] reencrypt protected part with --add-recipient without modifying the signature

* [x] Make the EWS integration in the client more generic as we need to do more requests than just sending email (get list of of folders, fetch email, send modification) * [x] reencrypt protected part with --add-recipient without modifying the signature * [ ] Copy non encrypted files also in the new folder * [ ] Support multiple keys

* [x] Make the EWS integration in the client more generic as we need to do more requests than just sending email (get list of of folders, fetch email, send modification) * [ * [x] reencrypt protected part with --add-recipient without modifying the signature * [ ] Copy non encrypted files also in the new folder * [ ] Support multiple keys