Document development and CI process for end user integration

[pahmann]

Formalize the development/integration process of how the kernel community operates incl. CI/CD also for end user integration as a standard.

This is a follow up action item from the Lund workshop:
https://drive.google.com/drive/folders/147nRSiEjs8USRetnSy0lyDPbtqAc9O63

This can be a collaboration between Systems WG and OSEP WG.