New stim definition

What does this MR do?

Update to new simulus definition (experiments, regression tests and carputils functions).

Related issues

Author's checklist

• Follow the Contribution Guidelines. Sign the CLA and add yourself to the list of contribtutors for your first contribution.
• Describe your change in the CHANGELOG.md file in the top-level folder of the openCARP repository.
• Apply the appropriate labels.
• Does this commit add new dependencies? If no, just tick the box. If yes, please evaluate carefully if the additional dependency is a more sustainable option than including the functionality in own code. If the former, describe the dependency clearly, add them to the Software Management Plan and the installation instructions (*.md files, CMake files, Docker files etc.).

Reviewer's checklist

All reviewers can help ensure accuracy, clarity, completeness, and adherence to the Contribution Guidelines.

Reviewer

• Review by a code reviewer or other selected colleague to confirm accuracy, clarity, and completeness. This can be skipped for minor fixes without substantive content changes.

Maintainer

• Review by assigned maintainer, who can always request/require the above reviews.