Rudder

The script list-compatible-inputs is bundled with ncf, but used by Rudder techniques
However we don't have strong dependency between Rudder and ncf (one can update Rudder without ncf)
Plus, as the script is used in the ncf folder, existing promises will make it non-executable, so the promise generation will fail, as they relies on it being executable

So, we decided to have packaging put it into /var/rudder/tools (the other ticket), and have the promises use it from this location