Add Zypper package mananger

[nico01f]

Replace this with the pull request description...

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Connects #68

[cla-bot]

Thank you for your pull request and welcome to our community. We could not parse the GitHub identity of the following contributors: Nico F.
This is most likely caused by a git client misconfiguration; please make sure to:

1. check if your git client is configured with an email to sign commits git config --list | grep email
2. If not, set it up using git config --global user.email email@example.com
3. Make sure that the git commit email is configured in your GitHub account settings, see https://github.com/settings/emails

[nico01f]

Hi!

Your inbox open-source@intoli.com is full. Take a look, I sent the email with the signed doc.

Greetings!