GitLab

- adds description for netperf experiment
- reformat local.py
- reformat results/netperf.py

- classes ExpEnv and ExpOutput had to be moved to prevent circular imports
- reformat common.py

This target only converts existing qcows to raw but does not trigger anything
else to be built. Main use-case is to run this in our released containers to
build the raw images that we're not shipping with because of the size.

But this time without the broken whitespace