CI framework cleanup

• Remove unused code
• Add unit tests
• remove autoterminate() and let CI skip steps and ensure full termination (every step has to return success/failure, harmonization)
• remove many cleanup XMLs
• cleanup log handling in Ping/Iperf
• Rework DeployObject/Undeployobject to work with .env, handle (again) correct sanitized images
• Implement possibility to run entire scripts on any machines (similar to SSH commands, but scripts)

This is only a start. Missing cleanup:

1. Harmonize "global information" (test ID, ranBranch/commit, directory for storing results, ...) and pass it in a uniform way to functions instead of passing through global information with duplication
2. Harmonize log collection through Python, remove from
3. Rewrite many things that are mixed Python+bash as pure shell scripts, to be executed with runScript. Example: physim deployment.
4. Rewrite handling of cores (EPC, 5GC) similar to UEs
5. Removal of global variables (that is a result of previous steps)
6. Rewrite (log) analysis + add unit tests
7. HTML templating + run all XMLs in a single test runner call