determine generalconfig file location in order: - command line argument - environment variable - git location (../cfg) - local location (cwd) - global location (/etc/frappy) Change-Id: Ie34bcbd5188837075ee7bb7d5029d676ae72378e Reviewed-on: https://forge.frm2.tum.de/review/c/secop/frappy/+/34839 Reviewed-by: Bjoern Pedersen <bjoern.pedersen@frm2.tum.de> Reviewed-by: Alexander Zaft <a.zaft@fz-juelich.de> Tested-by: Jenkins Automated Tests <pedersen+jenkins@frm2.tum.de>