Add a dry run mode for testing changed implementations #17
Description
Every run does changes to the environment in zenhub.
It would be good to have dry run that lists the changes to test new implementations on feature branches.
The dry-run mode should be able to read from zenhub and instead of executing the commands for changes just log the changes that would be executed.
A pipeline should support this on feature branches, by automaticly running in dry-run mode