Feature/results as pandas

[Bachibouzouk]

954 needs to be merged first, and this one needs to be rebase onto dev

It contains the current code of the v1.0.6rc22 which was used in open_plan for the stakeholder meeting

Changes proposed in this pull request:

• see changelog

The following steps were realized, as well (if applies):

• [ ] Use in-line comments to explain your code
• [ ] Write docstrings to your code (example docstring)
• [ ] For new functionalities: Explain in readthedocs
• [ ] Write test(s) for your new patch of code (pytests, assertion debug messages)
• [x] Update the CHANGELOG.md
• [x] Apply black (black . --exclude docs/)
• [x] Check if benchmark tests pass locally (EXECUTE_TESTS_ON=master pytest)

_{For more information on how to contribute check the CONTRIBUTING.md.}