Feature/allow converting

[mjspier]

Description

Allow converting input data according to the pandera schema so data types only need to be define in the schema and not also als load parameter.

Development notes

• Added reading of global and dataset parameter (convert)
• Added to return validated dataset when parameter is set
• Enabled validation + conversion also for output datasets
• Added unittest to test conversion example

Checklist

• [ ] Read the contributing guidelines
• [ ] Open this PR as a 'Draft Pull Request' if it is work-in-progress
• [ ] Update the documentation to reflect the code changes
• [ ] Add a description of this change and add your name to the list of supporting contributions in the CHANGELOG.md file. Please respect Keep a Changelog guidelines.
• [ ] Add tests to cover your changes

Notice

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