We split into quick smoke-tests, normal-tests, and valgrind-tests. The
first provides a quick-abort preventing overusing resources on what
will be a failed run anyway.
We'd like to have some more structure to the tests, with smoke-tests
going first, followed by valgrind and normal tests running in
parallel. So to cut down on the copy-pasta we extract the scripts from
the yaml, into their own files from where they can be easily invoked.
We don't have a good way of referring to the configuration that
failed, so let's give them a numberic ID. Particularly useful for the
artifacts that'd be overwritten otherwise.
