Automatically upload generated files to broaden tests variety

[e-caste]

Sometimes we find a bug. If we had many more real tests it would be easier to spot bugs in development rather than while using the app.

We could use an SSH key with write permission on a branch of this repo (e.g. "test-files") saved in our custom distro. After having generated the files, we should spawn a thread that tries to commit and push the directory containing the generated files to this repo, failing without erroring out (it's a plus, not a requirement). The directory should be saved as tests/pc-$(date +%s)-$(random seed for this PC).