Build Labgrid container images (derived from config in yocto-ktn/ci-tests)
Adding the docker files and CI config to build the Labgrid docker image. This is derived from the config in yocto-ktn with some improvements for the pipeline. The goal is to remove the Labgrid images from yocto-ktn, as they don't really belong there.
Edited by Frieder Schrempf