Make tiqr development environment work out of the box

[phavekes]

This issue is imported from pivotal - Originaly created at Nov 9, 2020 by Michiel Kodde

On the https://tiqr.example.com/demo/sp page (should also be accessible via the StepUp VM box). There is an error message: 'app/config/key.pem' cannot be found. This should probably be fixed in the parameters.yml.dist file, and or in the Stepup-Deploy repo. They should point to the correct keys by default

Possible actions:

• We probably want these certs in the config folder and not in the deprecated app folder.
• The default values set in the dist file should be synced accordingly.