Add stand-alone tool for testing connectivity to Qlik Sense repository database

[mountaindude]

Is your feature request related to a problem? Please describe.
New feature.

Butler SOS relies on the Sense repository database (=repo db) for certain data, for example a mapping of app IDs to app names.

Usually Butler SOS has no trouble retrieving app names from repo db, but when there are such troubles it would be useful to have a tool that just verifies that app names (and possibly other data) can be retrieved from repo db.

Describe the solution you'd like
As Butler SOS is built using Node.js it makes sense to use the same platform also for the stand alone tool described above.
A small application that's run from the command line, with config options (IP of repo db, username, password etc) sent in as command line parameters. Keep it as simple and stand-alone as possible.