Sequana-pipetools

What's Changed
* add singularity by cokelaer in https://github.com/sequana/sequana_pipetools/pull/41


**Full Changelog**: https://github.com/sequana/sequana_pipetools/compare/v0.9.0...v0.9.1

What's Changed
* Update CI by cokelaer in https://github.com/sequana/sequana_pipetools/pull/34
* add scrum profile by ddesvillechabrol in https://github.com/sequana/sequana_pipetools/pull/36
* Update to refactoring PipelineManager by cokelaer in https://github.com/sequana/sequana_pipetools/pull/38


**Full Changelog**: https://github.com/sequana/sequana_pipetools/compare/v0.8.1...v0.9.0

minor addition to check schema with more informative message

Stable release
- removed duplicated copy_requirements
- fix deprecated distutils to use packaging instead

cleanup setup

add the SEQUANA_WRAPPERS back into the API in case the user has a local repo