Add state of the art from sensor model testing repo

[ClemensLinnhoff]

Reference to a related issue in the repository https://github.com/openMSL/sl-1-5-sensor-model-testing/issues/35

Add a description Add state of the art from sensor model testing repo to this template. The sensor model testing repo will eventually be removed.

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• [x] My suggestion follows the governance rules.
• [x] All commits of this PR are signed.
• [x] My changes generate no errors when passing CI tests.
• [x] I updated all documentation (readmes incl. figures) according to my changes.
• [x] I have successfully implemented and tested my fix/feature locally.
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