Improve long testvector test result presentation

The nightly run of the long testvector test should be summarized in a better way, perhaps using gitlab pages. The summary should

• Clearly mark crashes
• Show history/diff from previous run

Draft steps:

• Change mld.csv from the jobs to be prefixed with the job name and commit SHA.
• Adapt ci/get_id_of_last_job_occurence.py to run on BASOP repo -- inject the repo URL somewhere.
• Replicate the log storage behavior used in the complexity reports.
• Create script to generate nice looking web page or similar to be presented on gitlab pages.