Benchmarks should be able to generate file artifacts

[denkv]

User story

It would be useful to allow benchmarks (and maybe systems) to generate any kind of artifacts (files) to be stored and be accessible later. One example where we need this is the graph visualization feature in ORCA, but it can be used widely to provide more insight to the experiment data and evaluation.

Solution

• files needs to be stored somewhere accessible from the internet
• in RDF, some files may be marked as parameters of KPIs, some files may be just general "attachments"
• in RDF, all files should be marked as such so we can provide UI for handling files
• in UI, display file name, size, link to the file

Problems

• the globally accessible URL is not known by the platform at the moment it will save files

Further ideas

• benchmark and system log files can be generated and stored when experiment ends