Fixed dependency versions

[mschwoer]

WHO alphaDIA people

WHAT Have all requirements' versions fixed

WHY Reproducibility, avoid breaking changes cascade down without notice

Acceptance Criteria

• All dependencies in requirements.txt and requirements_dev.txt are fixed to a specific version
• Another file requirements_loose.txt mirrors requirements.txt, but without the fixed versions
• A automated test is in place that ensures the correct mirroring of requirements.txt and requirements_loose.txt
• There is an option to install the loose dependencies

Additional information